BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Osservatorio Astrofisico di Catania - ECPv6.14.0//NONSGML v1.0//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Osservatorio Astrofisico di Catania X-ORIGINAL-URL:https://www.oact.inaf.it X-WR-CALDESC:Eventi per Osservatorio Astrofisico di Catania REFRESH-INTERVAL;VALUE=DURATION:PT1H X-Robots-Tag:noindex X-PUBLISHED-TTL:PT1H BEGIN:VTIMEZONE TZID:UTC BEGIN:STANDARD TZOFFSETFROM:+0000 TZOFFSETTO:+0000 TZNAME:UTC DTSTART:20220101T000000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTART;TZID=UTC:20220928T160000 DTEND;TZID=UTC:20230930T000000 DTSTAMP:20260404T194243 CREATED:20230920T143350Z LAST-MODIFIED:20231002T083933Z UID:13631-1664380800-1696032000@www.oact.inaf.it SUMMARY:Notte Europea dei Ricercatori 2023 DESCRIPTION:SHARPER è il nome di uno dei 6 progetti italiani sostenuti dalla Commissione Europea per la realizzazione della Notte Europea dei Ricercatori. \nSHARPER significa SHAring Researchers’ Passion for Enhanced Roadmaps e ha l’obiettivo di coinvolgere tutti i cittadini nella scoperta del mestiere di ricercatore e del ruolo che i ricercatori svolgono nel costruire il futuro della società attraverso l’indagine del mondo basata sui fatti\, le osservazioni e l’abilità nell’adattarsi e interpretare contesti sociali e culturali sempre più complessi e in continua evoluzione. \nPer l’edizione 2023\, SHARPER si svolgerà il 29 settembre in 14 città italiane\, tra cui Catania\, per raccontare la passione\, le scoperte e le sfide dei ricercatori di tutta Europa attraverso mostre\, spettacoli\, concerti\, giochi\, conferenze e centinaia di altre iniziative rivolte al grande pubblico. \nIn occasione della Notte dei Ricercatori 2023\, l’INAF-Osservatorio Astrofisico di Catania ha organizzato le seguenti attività per il pubblico che si svolgeranno tra il 28 e il 30 settembre: \n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\nIL SOLE E IL CLIMA TERRESTRE – Gli effetti della variazione dell’irraggiamento solare sul clima terrestre \nWebinar a cura di Paolo RomanoData e ora: 28-09-2023 dalle 16:00 alle 17:00 \n\n\n\n\nPer partecipare gli interessati dovranno mandare una email a divulgazione.oact@inaf.it\, oppure potranno seguire l’evento in diretta sul nostro canale YouTube. \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\nOCEAN WORLDS: ALLA RICERCA DELLA VITA – Gli oceani extraterresti come possibili sedi di vita \nWebinar a cura di Daniela SiciliaData e ora: 28-09-2023 dalle 17:00 alle 18:00 \n\n\n\n\nPer partecipare gli interessati dovranno mandare una email a divulgazione.oact@inaf.it\, oppure potranno seguire l’evento in diretta sul nostro canale YouTube. \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\nTECNICHE DI RADIOASTRONOMIA PER LA MEDICINA – Le tecniche di imaging in radioastronomia trovano largo impiego nella medicina e si sono rivelate fondamentali per la rivelazione precoce di cellule tumorali \nWebinar a cura di Francesco CavallaroData e ora: 28-09-2023 dalle 18:00 alle 19:00 \n\n\n\n\nPer partecipare gli interessati dovranno mandare una email a divulgazione.oact@inaf.it\, oppure potranno seguire l’evento in diretta sul nostro canale YouTube. \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\nSPACE WEATHER\, OCEANI ALIENI\, RADIODIAGNOSTICHE – Stand sulle attività dell’INAF – Osservatorio Astrofisico di Catania legate ai temi: Space weather\, oceani di altri mondi e ricerca della vita\, tecniche di radioastronomia per la lotta ai tumori \nA cura di Giuseppe CutispotoData e ora: 29-09-2023 dalle 18:00 alle 24:00Luogo: Piazza Università\, Catania \n\n\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\nIL SOLE E LO SPACE WEATHER: VIVERE CON UNA STELLA – Conferenza sulle relazioni Sole-Terra e osservazioni del Sole al telescopio presso la sede “A. Riccò” \nA cura di Salvatore Guglielmino e Fabiana FerrenteData e ora: 30-09-2023 dalle 10:00 alle 13:00Luogo: Osservatorio astrofisico “A. Riccò” – Via Santa Sofia 78 (CT) \n\n\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n Inoltre\, invitiamo le scuole a partecipare alla finale del torneo nazionale Sharper di SUMO SCIENCE (evento a cura di Psiquadro) che si svolgerà venerdì 29 settembre\, dalle ore 9 alle ore 13.30\, presso l’Auditorium Santa Cecilia di Perugia\, con la possibilità di partecipare online (prenotazione obbligatoria). Dettagli sotto: \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\nSumoScience – Final Four – Sharper Edition (ONLINE) – La finale del torneo nazionale Sharper di SUMO SCIENCE. Tutte le classi partecipanti\, sia in sala che da remoto\, potranno porre domande agli sfidanti e partecipare alle votazioni \n\n\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\nI quattro semifinalisti sono: \n\nFrancesca Garaventa (Consiglio Nazionale delle Ricerche) – SCIENZE MARINE\nFrancesca Ginatempo (Università di Sassari) – FISIOLOGIA\nRoberto Pierdicca (Università Politecnica delle Marche) – GEOMATICA\nPaolo Romano (INAF – Osservatorio Astrofisico di Catania) – FISICA SOLARE\n\n\n\n\n\nPer prenotare la partecipazione ONLINE\, collegarsi al seguente link. URL:https://www.oact.inaf.it/event/notte-europea-dei-ricercatori-2023/ CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2022/09/288774849_5253869261329108_8783305418292131719_n.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20230628T113000 DTEND;TZID=UTC:20230628T123000 DTSTAMP:20260404T194243 CREATED:20230620T171226Z LAST-MODIFIED:20230628T222811Z UID:13052-1687951800-1687955400@www.oact.inaf.it SUMMARY:Determination of fundamental stellar parameters on massive stars DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE: Wednesday\, June 28\, 11:30 a.m. \nORGANIZER: INAF OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Dott. Gabriel Ferrero (University of La Plata\, Argentina) \nABSTRACT:Massive stars (i.e. the progenitors of core-collapse supernovae) are quite scarce\, but play a crucial role in several important astrophysical phenomena\, as for example\, the chemical evolution of their host galaxies. Even so\, their fundamental stellar parameters (as mass\, radii\, temperature and luminosity) are poorly known. This relates to important uncertainties about their formation processes\, structure and evolution. We are attempting  to face this challenge at the research group GEMAE (Grupo de investigación en Estrellas Masivas y Agrupaciones Estelares) at the University of La Plata\, together with collaborators in Chile and Spain. We rely mainly on high-quality and high-resolution spectroscopic data collected by 18 years by the OWN Survey of the O-type and WN-stars in the Southern hemisphere. In this talk I will outline the work that we are developing at GEMAE\, focusing on determinations of masses of close binary stars by spectroscopy and photometry in the optic and near-infrared bands. \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/determination-of-fundamental-stellar-parameters-on-massive-stars/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2023/06/Seminario_Catania_2023_page-0001.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20230703T113000 DTEND;TZID=UTC:20230703T123000 DTSTAMP:20260404T194243 CREATED:20230626T161519Z LAST-MODIFIED:20230704T142812Z UID:13104-1688383800-1688387400@www.oact.inaf.it SUMMARY:The evolution of young low-mass stars: focus on rotation and activity DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE: Monday\, July 3\, 11:30 a.m. \nORGANIZER: INAF OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Dott. Louis Amard (astrophysics department of the CEA Saclay\, France) \nABSTRACT:Between its formation stage as an active accreting seed and today\, the Sun underwent large structural changes as well as variation in magnetic activity\, rotation rate and its relation to the surrounding environment. I will go through the different processes that are responsible for these changes and present our latest results on the subject. We will go from the early interaction between the star and its proto-planetary disc bathing in UV radiations emitted from the massive neighbours\, to the internal mixing happening in the inner layers of solar-like stars that are probed by asteroseismology.Finally\, I will review the possible applications of this work to other types of stars at different stages of the evolution in the context of the current or future surveys. \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/the-evolution-of-young-low-mass-stars-focus-on-rotation-and-activity/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2023/06/pastedImage.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20231120T113000 DTEND;TZID=UTC:20231120T123000 DTSTAMP:20260404T194243 CREATED:20231114T091439Z LAST-MODIFIED:20231114T091442Z UID:14891-1700479800-1700483400@www.oact.inaf.it SUMMARY:Challenges for the forthcoming CMB polarization experiments DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE: Monday\, November 20\, 11:00 a.m. \nORGANIZER: INAF OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Prof. Giuseppe Puglisi (DFA – Università di Catania) \nABSTRACT:One of the major challenges in the context of the Cosmic Microwave Background (CMB) radiation is to detect a polarization pattern\, the so called B-modes of CMB polarization\, that are thought to be directly linked to the space-time fluctuations present in the Universe at the very first instants of life. To date\, several challenges have prevented to detect the B-modes partly because of the lower sensitivity of the detectors. Our own Galaxy is observed in this context as a foreground contamination. However the awareness of improving the modeling of its polarized emission has been constantly increase not only to assess the cosmological signals but also to provide new insights onto the Galactic magnetic field probed with the Galactic polarized emissions\, e.g. synchrotron and thermal dust. This is particularly relevant in order to better characterize the foreground contamination for future CMB experiments (e.g. SO\, LiteBIRD\, CMB-S4 )\, where unprecedented polarization sensitivities are expected to be achieved in the coming decades. \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/challenges-for-the-forthcoming-cmb-polarization-experiments/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2023/11/seminario_puglisi.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20231201T113000 DTEND;TZID=UTC:20231201T123000 DTSTAMP:20260404T194243 CREATED:20231123T111413Z LAST-MODIFIED:20231130T223527Z UID:15007-1701430200-1701433800@www.oact.inaf.it SUMMARY:Astronomical Observations & Optical Communication through Atmospheric Turbulence DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE: Friday\, December 1\, 11:30 a.m. \nORGANIZER: INAF OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Dr. Aziz Ziad (Université Côte d’Azur) \nABSTRACT:The atmospheric parameters have a strong impact on the image formation through the atmosphere. Indeed\, the effect of atmospheric turbulence on wavefronts reduces severely the resolution of ground-based astronomical observations. Thus\, in the context of astronomical observations\, the site-selection has now become essential with the advent of the next generation of Extremely Large Telescopes (ELT). Indeed\, it is important to choose sites with reduced cloud coverage\, weak turbulence and low aerosol distribution in order to enhance observations time and to improve their scientific performance. It is also important to remember that the choice of sites hosting astronomical projects must meet very strict criteria in terms of optical quality. Future optical communications and telemetry stations will be forced to meet the same requirements. \nBeyond Site-Testing and Site-Selection for Astronomical Observations or Optical Communications\, precise knowledge of atmospheric turbulence parameters is of interest for the technical specifications of the Adaptive Optics (AO) systems dedicated to real-time correction of the atmospheric turbulence. In addition\, the CN2(h) profiles (as well as wind and outer scale profiles) with high vertical resolution is necessary for a better evaluation of the performance of AO systems. A large number of monitors have been developed for this purpose\, particularly with the emergence of ELT projects\, but very few meet the required need. Recently\, a new station has been developed in the framework of a European consortium and a contract with the European Space Agency (ESA). This ANAtOLIA station is a compact mobile high-performance station\, equipped with the most performing instruments leading to the whole atmospheric parameters. \nANATOLIA is a ESA funded project aimed to study\, among other topics\, the  effects of aerosols and atmospheric turbulence on optical communication. Master students in Physics\, Engineering\, Geology are solicited to attend if interested to conduct research on (one/more) topic(s) in optical communication (internship and PhD level). \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/astronomical-observations-optical-communication-through-atmospheric-turbulence/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2023/11/seminario_Aziz_Ziad.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20231206T113000 DTEND;TZID=UTC:20231206T123000 DTSTAMP:20260404T194243 CREATED:20231130T090026Z LAST-MODIFIED:20231205T183935Z UID:15074-1701862200-1701865800@www.oact.inaf.it SUMMARY:Space-Weathering on Primitive Asteroids DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE:  Wednesday\, December 6\, 11:30 a.m. \nORGANIZER: INAF OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Dr. Stefano Rubino (INAF-IAPS) \nABSTRACT:Studying small bodies in our solar system is fundamental for understanding its youth and evolution. These small “primitive” bodies are “undifferentiated” (they did not undergo phase density separation\, irreversibly altering their mineralogy). They have evolved little since their creation\, spurring a composition relatively close to the primordial proto-planetary disk. However\, other processes\, such as thermal alteration\, aqueous alteration\, shocks\, or space-weathering\, can affect these bodies’ surfaces. This issue is because remote-sensed data acquired while studying these bodies target these surfaces. If these surfaces have been altered\, they can induce a particular bias in the study of the composition of these small bodies. Therefore\, it is paramount to understand the processes affecting the surface of primitive asteroids to assess their composition correctly.There are several ways to study the surface of primitive asteroids\, such as remotely\, from the Earth or a satellite orbiting the body of interest\, by acquiring spectroscopic data (gaining access to surface chemical and mineralogical composition). It is also possible to study these bodies in a laboratory environment by working on analogous materials\, such as certain classes of “primitive” meteorites (carbonaceous chondrites)\, on terrestrial analogs (simpler to study than meteorites but less closely related to extraterrestrial materials)\, or directly on extraterrestrial materials brought back by sample return missions.In this work\, we replicate the effects of space weathering (SpWe) on the surface of primitive asteroids in a laboratory environment. More specifically\, we focus on the effects of solar wind\, the dominant SpWe process on “young” surfaces of the solar system. We have chosen three terrestrial minerals analogous to a “primitive” surface – three hydrated minerals (two serpentines and one saponite) – of which we have produced several pellets which have been bombarded using He and Ar ions\, to investigate the effects of two different solar wind. In doing so\, we made analogous materials of weathered primitive surface matter.These analogs were then characterized by infrared spectroscopy\, from the visible to the far-infrared range\, to study chemical changes prompted by ion bombardment. This was done by investigating how certain spectroscopic features – characteristic of hydrated silicates – changed upon ion bombardment. We detected several effects\, such as darkening in the visible range\, visible slope reddening and bluing\, and a systematic shift towards longer wavelength affecting the position of several spectroscopic features.This spectroscopic characterization was followed by a study at a smaller scale using electron microscopy. We first characterized the surface of our weathered analogs using scanning electron microscopy. Then\, we investigated the morphological and physicochemical changes in the bombarded layer\, at a nanometer scale using transmission electron microscopy. Strong vesiculation effects of various kinds were identified in the ion-bombarded amorphized layers\, textural changes\, and some elemental concentration evolution (such as the loss of oxygen in the utmost top surfaces\, preferential amorphization of magnesium\, etc.). The coupling between these two techniques\, IR spectroscopy\, and electron microscopy acting at different scales\, has allowed for a better understanding of SpWe effects on primitive bodies and will be able to support current and future studies of primitive bodies\, whether they are carried out remotely or in a laboratory environment on returned samples. \n  \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/space-weathering-on-primitive-asteroids/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2023/11/Rubino_locandina_6.12.23jpg.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20231218T113000 DTEND;TZID=UTC:20231218T123000 DTSTAMP:20260404T194243 CREATED:20231207T152850Z LAST-MODIFIED:20231207T153032Z UID:15146-1702899000-1702902600@www.oact.inaf.it SUMMARY:The Gravitational-Wave breakthrough we can('t) wait for DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE:  Monday\, December 18\, 11:30 a.m. \nORGANIZER: INAF OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Dr. Gianluca Pagliaro (Max Planck Institute for Gravitational Physics\, AEI Hannover) \nABSTRACT:Less than a decade after the first historical Gravitational Wave (GW) detection GW150914\, the field of GW astronomy has grown at a phenomenal pace\, going from less than an event per month\, to the currently observed rate of few events a week.Despite the exceptional contributions the field has brought to fundamental physics\, astronomy\, cosmology\, computational physics as well as the unavoidable collateral progress in fields related to the experimental development of GW detectors\, the picture is anything but complete.Amongst the missing pieces of the puzzle we find Continuous Gravitational Waves (CGWs). In this seminar I am going to talk about CGWs\, what are they and what astrophysical sources and mechanisms can produce them\, with a particular focus on non-axisymmetric spinning Neutron Stars. I will also briefly discuss the different search implementations\, what is done\, or can be done\, to increase our chances to arrive to what is probably going to be the next breakthrough in GW Astronomy\, the first CGW detection\, including a discussion about prospects in view of future observation runs as well as GW detectors operational in the close future. \n  \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/the-gravitational-wave-breakthrough-we-cant-wait-for/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2023/12/seminar_catania_cover_2_page-0001.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20240122T110000 DTEND;TZID=UTC:20240122T120000 DTSTAMP:20260404T194243 CREATED:20240109T144134Z LAST-MODIFIED:20240117T113936Z UID:15391-1705921200-1705924800@www.oact.inaf.it SUMMARY:The contribution of laboratory experiments in the study of organic matter in Solar-system bodies DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE:  Monday\, January 22\, 11:00 a.m. \nORGANIZER: INAF OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Dr. Riccardo Giovanni Urso (INAF-Osservatorio Astrofisico di Catania) \nABSTRACT:Organic matter is revealed in a variety of extraterrestrial bodies\, including comets\, asteroids\, satellites\, and trans-Neptunian objects. On atmosphere-less surfaces\, organics are detected in the visible and near-infrared thanks to observations performed with the instruments on-board space probes and telescopes. Further information on the properties of organics comes from the analysis of meteorites\, interplanetary dust particles\, and unique samples collected on comets and asteroids during dedicated space missions. \nUnderstanding the properties of organic matter present in small bodies would allow us to shed light on processes that happened at the dawn of the Solar System\, when these objects formed by the aggregation of the materials available in the protoplanetary disk. However\, since their formation\, atmosphere-less surfaces were continuously exposed to energetic photons\, solar particles\, and cosmic rays that cause the alteration of organics\, hindering to draw firm conclusions on their pristine composition and origin. \nWith the aim to support the interpretation of recent remote sensing observations and the analysis of extraterrestrial samples\, we performed laboratory experiments to study the spectral properties of organics revealed in Solar System bodies\, to shed light on the alteration induced by energetic charged particles\, and to suggest possible pathways for the organics’ formation thanks to processes that involved molecular precursors already available in the pre-solar cloud. \n  \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/the-contribution-of-laboratory-experiments-in-the-study-of-organic-matter-in-solar-system-bodies/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/01/Seminario-OACT-1.2024.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20240130T113000 DTEND;TZID=UTC:20240130T120000 DTSTAMP:20260404T194243 CREATED:20240123T222903Z LAST-MODIFIED:20240124T084338Z UID:15478-1706614200-1706616000@www.oact.inaf.it SUMMARY:RU Lup: the accretion environment of a prototypical Classical T Tauri star DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE:  Tuesday\, January 30\, 11:30 a.m. \nORGANIZER: INAF OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Dr. Antonio Armeni (Tuebingen University) \nABSTRACT: \nWhile it is well established that Classical T Tauri stars accrete material from a circumstellar disk through magnetic fields\, the physics regulating the processes in the inner (0.1 AU) disk is still not well understood. With its long observational history and its rich emission line spectrum\, RU Lup is a prime example to study this environment. \nRU Lup is a monitoring target within the ULLYSES survey for Classical T Tauri stars. Optical spectroscopic observations with CHIRON and ESPRESSO were obtained simultaneously with the two epochs of the ULLYSES monitoring program for RU Lup. \nIn this talk\, I will discuss the main results obtained by analyzing this collection of data\, supplemented by the two TESS observations and the archival AAVSO photometry of RU Lup.Using the high resolution ESPRESSO spectra\, we improved the measurements of the stellar parameters\, especially the projected rotational velocity (vsini).We determined the veiling fraction for the ESPRESSO spectra\, showing that the veiling consists of two components: a continuum emission likely originating in the accretion shock and line emission that fills in the photospheric absorption lines.We detected a periodic modulation in the narrow component (NC) of the He I 5876 line with a period that is compatible with the stellar rotation period\, indicating the presence of a compact region on the stellar surface that we identified as the footprint of the accretion shock. Although the brightness of RU Lup changed drastically both on daily and yearly timescales\, this region is overall stable over the 3 years covered by the observations.An analysis of the high-cadence TESS light curves revealed quasi-periodic oscillations (QPO) on timescales shorter than the stellar rotation period. This suggests that the accretion disk in RU Lup extends inward of the corotation radius and the star accretes through a magnetic boundary layer (MBL). The rich metallic emission line spectrum of RU Lup might be characteristic of this accretion regime. \n  \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/ru-lup-the-accretion-environment-of-a-prototypical-classical-t-tauri-star/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/01/RU_Lup_cover_page-0001.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20240211T103000 DTEND;TZID=UTC:20240211T123000 DTSTAMP:20260404T194243 CREATED:20240206T105955Z LAST-MODIFIED:20240219T100256Z UID:15583-1707647400-1707654600@www.oact.inaf.it SUMMARY:Meet "LE" Researchers - IX Giornata delle donne e delle ragazze nella scienza DESCRIPTION:DATA:  Domenica\, 11 Febbraio\, ore 10.30 – 12.30 \nLUOGO: Città della Scienza – Via Simeto 23\, Catania \nDomenica 11 Febbraio si celebra la IX Giornata internazionale delle donne e delle ragazze nella scienza.Il Centro Siciliano di Fisica Nucleare e di Struttura della Materia in collaborazione con l’Università di Catania\, l’INAF Osservatorio Astrofisico di Catania e l’INFN Sezione di Catania\, organizzano l’evento 𝐌𝐞𝐞𝐭 “𝐋𝐄” 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡𝐞𝐫𝐬 per raccontare e soprattutto far vedere dal vivo cosa fanno le ricercatrici delle materie STEM a Catania. \nDue ore in cui potrete scoprire esperimenti e dimostrazioni di biologia\, chimica\, fisica\, geologia\, intelligenza artificiale e tanto altro. Insieme ad un nutrito gruppo di ricercatrici catanesi osserverete la sabbia al microscopio\, scoprirete come la chimica possa servire nella lotta contro il cancro\, osserverete il sole con un telescopio\, farete un viaggio negli abissi a caccia di neutrini e\, ancora\, scoprirete come l’intelligenza artificiale permetta di riconoscere alimenti e rifiuti\, come sia possibile osservare le particelle che provengono dal cosmo\, come riconoscere le gemme\, come la fisica vi possa aiutare a proteggere l’ambiente che ci circonda. Esperimenti e dimostrazioni tutti al femminile per conoscere il ruolo delle donne e delle ragazze nella scienza! \nL’evento ha ottenuto il logo ufficiale dell’ International Day Of Women And Girls In Science patrocinata dall’Unesco e promossa dalla Royal Academy of Science International Trust (RASIT). \n \n  \nLeggi l’articolo pubblicato da La Tecnica della Scuola: Giornata delle donne e delle ragazze nella scienza\, esperimenti e dimostrazioni dal vivo curate da ricercatrici catanesi: l’evento URL:https://www.oact.inaf.it/event/meet-le-researchers-ix-giornata-delle-donne-e-delle-ragazze-nella-scienza/ LOCATION:Città della Scienza\, via Simeto 23\, Catania\, Italia CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/02/Locandina-evento.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20240212T113000 DTEND;TZID=UTC:20240212T120000 DTSTAMP:20260404T194243 CREATED:20240206T101354Z LAST-MODIFIED:20240206T101358Z UID:15576-1707737400-1707739200@www.oact.inaf.it SUMMARY:Investigating the link between protoplanets\, disk substructures and disk winds DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE:  Monday\, February 12\, 11:30 a.m. \nORGANIZER: INAF OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Dr. Justyn Campbell-White (ESO-Garching) \nABSTRACT: \nProtoplanetary disks are now routinely observed around young stars but the planets they produce remain elusive to detect. So far\, we have only one confirmed direct detection of protoplanets in the disk of PDS 70\, with some tentative results (e.g. AB Aur). Yet disk structures are found almost ubiquitously across the sample of resolved disks. We are investigating the potential relationship between inner disk winds and outflows (traced by optical emission lines\, such as [OI])\, and the presence and type of disk substructures. We aim to determine whether or not the various substructures are the direct results of protoplanet formation. \nI will present new results from recent and archival observations of PDS 70. In order to investigate such connections between winds\, substructures and planets\, we turn to the one system where we have certainly detected the planets. We have carefully applied established techniques to the high-resolution spectra to reveal previously unseen forbidden emission profiles. These results suggest a significant wind originating from the inner disk. We compare these results and measurements of the mass accretion rate and disk properties to those of other weakly accreting young stars and those with transition disks. \nWe are also carrying out this investigation for the PENELLOPE/ULLYSES sample of ~80 young stars. This complements existing surveys of such winds/outflows\, whilst allowing for further exploration of the relation to disk substructures\, towards a more complete statistical survey. \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/investigating-the-link-between-protoplanets-disk-substructures-and-disk-winds/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/02/JCW_INAF_02_2024_page-0001.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20240311T173000 DTEND;TZID=UTC:20240311T200000 DTSTAMP:20260404T194243 CREATED:20240306T153541Z LAST-MODIFIED:20240306T153543Z UID:15782-1710178200-1710187200@www.oact.inaf.it SUMMARY:Osservazione della luna DESCRIPTION:Il Centro Islamico Culturale d’Italia – Grande Moschea di Roma in collaborazione con l’Istituto Nazionale di Astrofisica e l’Unione Astrofili Italiana e con la partecipazione della Confederazione Islamica Italiana e con la rete Pakistana Dawate Islami in Italia organizzano l’evento “Osservazione della luna per l’inizio del mese di Ramadan 1445 AH”. \n\n\n\nUn incontro dedicato all’avvistamento\, eventualmente assistito con strumentazione astronomica\, della Luna Nuova di Ramadan. Questo incontro si svolgerà in via telematica mediante la piattaforma ZOOM e in presenza per piccole delegazioni di Imam in alcune sedi INAF e UAI. Le osservazioni verranno trasmesse anche in streaming via streaming sul canale Facebook della Grande Moschea di Roma. \n  \n\n\n\nProgramma \n17:45 – Saluti delle autoritàDott. Abdellah Redouane\, Segretario Generale del Centro Islamico Culturale d’Italia “La Grande Moschea di Roma”Caterina Boccato\, INAF Struttura di Presidenza per la ComunicazionePaolo Morini\, Unione Astrofili Italiana\, delegazione di Ravenna \n18:00 – Collegamenti in sequenza dipendentemente dall’orario di tramonto del Sole e Luna: Catania\, Salerno\, Ragusa\, Palermo\, Savignano sul Rubicone (FC)\, Ravenna\, Roma\, Padova\, Bologna\, Piombino (LI)\, Cagliari (NB: i collegamenti dipenderanno dal tempo atmosferico) \n19:30 – Conclusione e analisi delle osservazioni e saluti \n\n\n\n\n\n\n\n\n\n​ \nModerano:Federico Di Giacomo – INAF Imam Dr. Nader Akkad – commissione scientifica per l’avvistamento lunare della Grande Moschea di Roma URL:https://www.oact.inaf.it/event/osservazione-della-luna/ CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/03/osservazione_luna.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20240415T100000 DTEND;TZID=UTC:20240415T110000 DTSTAMP:20260404T194243 CREATED:20240413T221042Z LAST-MODIFIED:20240413T221044Z UID:16079-1713175200-1713178800@www.oact.inaf.it SUMMARY:Unlocking Cosmic Origins: LiteBIRD's quest for Inflationary GWs DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE:  Monday\, April 15\, 10:00 a.m. \nORGANIZER: INAF OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Dr. Avinash Anand (Department of Physics\, University of Rome\, Tor Vergata) \nABSTRACT: \nThe LiteBIRD (Lite (Light) satellite for the studies of B-mode polarization and Inflation from cosmic background Radiation Detection) experiment is a space mission dedicated to studying the polarization of the Cosmic Microwave Background (CMB). Its primary objective is to detect the faint B-mode polarization patterns in the CMB\, which are believed to be imprints of gravitational waves from the early universe\, particularly from the period of cosmic inflation. LiteBIRD is equipped with a 30 arcmin beam width and an extraordinarily low polarization noise of 2.16μK-arcmin\, making it uniquely capable of capturing large scale full-sky CMB polarization. \nOur studies address two significant challenges in detecting Inflationary B-modes: foregrounds and the weak gravitational lensing of the CMB.Foregrounds\, varying with observation frequency\, can be mitigated through multi-frequency sky observations. However\, gravitational lensing of the CMB presents a different problem\, as it is not frequency-dependent and causes E-mode polarization to convert to B-modes. This conversion masks the primordial B-modes we aim to detect. Our work concentrates on estimating the mass distribution from the CMB field to create a template of lensing B-modes. By removing this lensing-induced B-mode template from the observational data\, we enhance the sensitivity towards detecting Inflationary gravitational waves. \nThis talk will explore the methodologies used in this study\, the challenges encountered\, and the potential impact on the detection of the Inflationary gravitational waves. \n  \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/unlocking-cosmic-origins-litebirds-quest-for-inflationary-gws/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/04/avinash_seminario.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20240422T110000 DTEND;TZID=UTC:20240422T110000 DTSTAMP:20260404T194243 CREATED:20240418T141120Z LAST-MODIFIED:20240418T141602Z UID:16101-1713783600-1713783600@www.oact.inaf.it SUMMARY:Archeology of interstellar archipelagos: Reconstructing the lifecycle of star-forming clouds DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE:  Monday\, April 22\, 11:00 a.m. \nORGANIZER: INAF OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Dr. Juan Diego Soler (IAPS-INAF) \nABSTRACT: \nDetermining how star-forming molecular clouds (MCs) arise from and interact with the diffuse interstellar medium (ISM) is crucial for understanding the initial conditions of planet and star formation and the evolution of the Milky Way and other similar galaxies. I will present state-of-the-art observations of neutral atomic hydrogen (HI) and interstellar magnetic fields\, which\, combined with numerical simulations and novel statistical tools based on machine vision\, reveal three crucial aspects of the MC lifecycle. First\, the signature of magnetization in the structure of MCs in the solar neighborhood\, within 500 parsecs from the Sun. Two\, the imprint of supernova feedback in the HI structure across the Galactic plane. And finally\, the coupling between atomic and molecular gas in and around MCs. I will discuss the consequences of these findings for our understanding of the Galactic ecosystem and the prospects for radio-interferometric and submillimeter polarization observations from the forthcoming facilities. \n  \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/archeology-of-interstellar-archipelagos-reconstructing-the-lifecycle-of-star-forming-clouds/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/04/Soler_seminario.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20240423T150000 DTEND;TZID=UTC:20240423T180000 DTSTAMP:20260404T194243 CREATED:20240422T090940Z LAST-MODIFIED:20240424T092036Z UID:16156-1713884400-1713895200@www.oact.inaf.it SUMMARY:MSC in Physics: which curriculum? (2024 edition) DESCRIPTION:In collaborazione con il Dipartimento di Fisica e Astronomia\, giorno 23 aprile 2024\, con inizio alle ore 15:00\, presso l’Osservatorio Astrofisico di Catania\, avrà luogo l’iniziativa “Which Curriculum”\, rivolta alle studentesse e agli studenti della laurea triennale in Fisica come orientamento nella scelta della specializzazione per il corso magistrale. \n\n \n \n \n \n \n \nDurante il pomeriggio\, i ragazzi potranno visitare i nostri laboratori e parlare con i nostri ricercatori per conoscere e approfondire le attività scientifiche\, i progetti in corso e le prospettive future. \n\n \nL’incontro è promosso dalla Commissione Qualità del DFA. URL:https://www.oact.inaf.it/event/msc-in-physics-which-curriculum-2024-edition/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/04/437535265_743024694485692_1280210000960869084_n.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20240513T210000 DTEND;TZID=UTC:20240513T223000 DTSTAMP:20260404T194243 CREATED:20240512T093323Z LAST-MODIFIED:20240512T093439Z UID:16251-1715634000-1715639400@www.oact.inaf.it SUMMARY:Pint of Science 2024: Dalla Polvere ai Buchi Neri DESCRIPTION:Nell’ambito dell’iniziativa “Pint of Science“\, che si propone di promuovere incontri con ricercatori in un ambiente accogliente e informale\, vi segnaliamo la seguente iniziativa\, che si svolgerà presso il Joyce Irish Pub\, Via Montesano 46 – Catania. \n \n \n \n \n \n \nTitolo: Dalla polvere ai buchi neri \nSommario: Tu potresti morire ma il deserto nasconderebbe il segreto della tua morte che rimarrebbe dopo di te per coprire la tua memoria con il  vento… scrive John Fante in Ask the dust. Chiedi quindi alla polvere\, ma di una stella\, se vuoi sapere cosa ci attende se cadessimo in un Buco Nero\, dove lo spazio diventa tempo e il tempo diventa spazio\, dove forse si cela il passaggio verso un nuovo Universo gemello del nostro. Siete pronti a questo viaggio cosmico? \nRelatore: Alfio Bonanno (Primo Ricercatore – INAF Osservatorio Astrofisico di Catania e INFN Sezione di Catania). \nAlfio Bonanno\, è Primo Ricercatore INAF associato alla Sezione di Catania dell’INFN. I suoi interessi di ricerca principali sono la Gravità Quantistica e lo studio dei campi magnetici stellari. Durante il dottorato di Ricerca è stato Research Assistant alla University of Alberta dove ha lavorato con il gruppo di cosmologia di Werner Israel e ha poi proseguito la sua esperienza in varie università e centri di ricerca europei. Attualmente lavora presso l’Osservatorio Astrofisico di Catania e nel tempo libero suona il pianoforte. Insegna da alcuni anni anche un corso su Teologia e Scienze all’ISSR presso la Facoltà Teologica di Palermo. \n\n \n \n \n \n \n  \n\n Ingresso libero fino a esaurimento dei posti disponibili URL:https://www.oact.inaf.it/event/dalla-polvere-ai-buchi-neri/ LOCATION:Joyce Irish pub\, Via Montesano 46\, Catania\, 95131\, Italia CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/05/Screenshot-2024-05-12-alle-11.28.53.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20240514T090000 DTEND;TZID=UTC:20240516T180000 DTSTAMP:20260404T194243 CREATED:20240424T094724Z LAST-MODIFIED:20240424T094727Z UID:16168-1715677200-1715882400@www.oact.inaf.it SUMMARY:ESP2024 - PLATO PLANETARY SYSTEMS: Formation to Observed architectures DESCRIPTION:PLATO is the 3rd mission of class M in the ESA Cosmic Vision program. Its main goal is detecting terrestrial planets in the habitable zone of  solar type stars. With its huge FOV\, most of the PLATO targets are bright stars that will be monitored with high cadence (25 s) for at least 2-3 years during the long duration observing program\, while contemporary a number of very bright stars in the sample will be observed with 2.5 s cadence. The collected data\, photometry from space and high resolution spectroscopy from the ground\, will provide accurate planetary structures as well as  architectures and evolutionary stage – via asteroseismic analysis – of a large number of planetary systems. PLATO is planned for a launch in Dec 2026. \nMore information on PLATO are on the ESA website and in PLATO Mission Consortium website. \nWith  PLATO Mission due for launch soon  this would seem a good time to review the present state of knowledge of exoplanet systems and the objectives of the mission. PLATO is optimized for the detection and characterization of small planets in the habitable zones of Sun-like stars. By combining two cutting-edge approaches: planetary transits and the study of the internal structure of stars using stellar seismology\, supported by a dedicated ground-based observation programme.In combination with a dedicated ground based observation programme\, PLATO will provide accurate planetary parameters (including age) for a large sample of exoplanets which could be used to answer many scientific questions eg if there are favoured evolutionary paths for exoplanets by comparison with theoretical population models PLATO will provide accurate and complete planetary parameters (including age) for a large sample of exoplanets\, allowing to address a variety of scientific questions: planet occurrences\, trends in composition\, dynamical evolution\, favoured evolutionary paths\, etc. \nThe aim of this conference is to review the current state of the art in the field and to examine the range of scientific questions PLATO data could prove useful. Themed sessions will examine planetary systems at all stages of their evolution as well as give an overview of the PLATO mission\, its  future data\, and how to become involved. \n  \nSESSION THEMES \n1 – PLATO mission – where are we?2 – PLATO Science – From Stars to Planets3 – System architectures from observations4 – Advances in planet formation5 – Exoplanets Evolution6 – Relevant Stellar Science \n\n  \nMore info URL:https://www.oact.inaf.it/event/esp2024-plato-planetary-systems-formation-to-observed-architectures/ LOCATION:Department of Physics and Astronomy “Ettore Majorana” (DFA) of the Catania University\, Via Santa Sofia 64\, Catania\, 95123\, Italia CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/04/PLATOESP2024_Poster-2.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20240514T210000 DTEND;TZID=UTC:20240514T223000 DTSTAMP:20260404T194243 CREATED:20240512T094414Z LAST-MODIFIED:20240512T094417Z UID:16268-1715720400-1715725800@www.oact.inaf.it SUMMARY:Pint of Science 2024: La conquista dello spazio DESCRIPTION:Nell’ambito dell’iniziativa “Pint of Science“\, che si propone di promuovere incontri con ricercatori in un ambiente accogliente e informale\, vi segnaliamo la seguente iniziativa\, che si svolgerà presso il Joyce Irish Pub\, Via Montesano 46 – Catania. \n \n \n \n \n \n \nTitolo: La conquista dello spazio \nSommario: Partendo dallo storico viaggio di Gagarin\, si parlerà di come il genere umano ha conquistato lo spazio che ci circonda\, delle prospettive future a breve e lungo termine e\, per i pochi a quel punto ancora ragionevolmente sobri\, delle ricadute sulla vita di tutti i giorni delle tecnologie spaziali. \nImmagine Credits: ESA liberamente modificata da Daniela Sicilia \nRelatore: Giuseppe Cutispoto (Primo Ricercatore – INAF Osservatorio Astrofisico di Catania) \nLaurea in Fisica e dottorato in Astrofisica a Catania. Ricercatore presso l’Osservatorio Astrofisico di Catania dal 1987\, attualmente Primo Ricercatore. Coordinatore del Comitato Organizzatore dei Campionati Italiani di Astronomia. Appassionato di fantascienza\, sfortunatamente (quasi) astemio. \n\n  \n  \n \n \n \n \n \n  \n\n Ingresso libero fino a esaurimento dei posti disponibili URL:https://www.oact.inaf.it/event/pint-of-science-2024-la-conquista-dello-spazio/ LOCATION:Joyce Irish pub\, Via Montesano 46\, Catania\, 95131\, Italia CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/05/Screenshot-2024-05-12-alle-11.40.33.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20240606T100000 DTEND;TZID=UTC:20240609T200000 DTSTAMP:20260404T194243 CREATED:20240608T220809Z LAST-MODIFIED:20240608T220812Z UID:16393-1717668000-1717963200@www.oact.inaf.it SUMMARY:Etna Comics 2024 DESCRIPTION:L’Istituto Nazonale di Astrofisica sarà presente all’edizione 2024 di Etna Comics\, rassegna di fumetti e giochi che si svolge a Catania dal 6 al 9 giugno. \n \n \n \n \n \n Per il secondo anno consecutivo\, l’Istituto Nazionale di Astrofisica parteciperà alla ormai consolidata rassegna di fumetti e giochi Etna Comics\, manifestazione inaugurata nel 2011 e che si tiene ogni anno presso il centro fieristico le Ciminiere di Catania. \nIn particolare l’INAF si presenta con una serie di attività interattive nell’Area Family. Potrete infatti giocare a PIXEL – Picture (of) the Universe\, il gioco da tavolo sulla risoluzione in astrofisica o a Cosmo Hunters\, gioco di carte sull’osservazione degli oggetti celesti\, senza dimenticare il Code Hunting Game\, una caccia al tesoro virtuale nel mondo dell’astronomia che vi permetterà di entrare nel mondo del coding. Per gli appassionati di giochi a quiz c’è poi Chi vuol essere astrofisico?\, con un neanche troppo nascosto riferimento a un famoso quiz televisivo. \nCi sono poi molte attività che stimolano la parte artistica\, in particolare quella dei bambini\, come per esempi Il Solametro – Disegna i Pianeti e mettili al posto giusto\, o ancora Disegna il tuo pianeta (reale o immaginario) e un classico come Pixel Art\, ovviamente a tema astronomico. \nNell’Area Comics\, poi\, il 7 giugno alle 11 in sala Galatea Angelo Adamo\, ricercatore tecnologo dell’INAF IASF di Palermo\, presenta INAFfumètti: con la testa ben oltre le nuvole (balloons)\, nel corso del quale presenterà la sua ultima opera\, realizzata in collaborazione con Sandro Bardelli\, dell’OAS di Bologna. B.A.O. – Baryon-Acoustic-Oscillations\, che segue anche stilisticamente l’opera dello scorso anno\, presentata a Lucca Comics&Science 2023\, è incentrato sulla materia oscura ed è un’ottima introduzione alla scienza dietro Euclid\, il satellite dedicato proprio allo studio di questa sfuggente forma della materia.Ovviamente i lettori di EduINAF possono scaricare il fumetto a questo link: B.A.O. – Baryon-Acoustic-Oscillations. \nBuona lettura e una buona Etna Comics a chi andrà a visitare questa emozionante rassegna! \nFonte: EduINAF URL:https://www.oact.inaf.it/event/etna-comics-2024/ LOCATION:Le Ciminiere\, viale Africa 222\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/06/inaf_etna_comics2024-evidenza.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20240708T110000 DTEND;TZID=UTC:20240708T120000 DTSTAMP:20260404T194243 CREATED:20240702T163627Z LAST-MODIFIED:20240702T163716Z UID:16502-1720436400-1720440000@www.oact.inaf.it SUMMARY:Resilience of Eukaryotic Life in Mars-Like Simulated Conditions DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE:  Monday\, July 8\, 11:00 a.m. \nORGANIZER: INAF OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Dr. Maria Teresa Muscari-Tomajoli (Parthenope University of Naples\, Italy) \nABSTRACT \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/resilience-of-eukaryotic-life-in-mars-like-simulated-conditions/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/07/Maria-Teresa-MT-locandina-seminario-INAF-08.07.24_page-0001.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20240715T113000 DTEND;TZID=UTC:20240715T120000 DTSTAMP:20260404T194243 CREATED:20240711T085847Z LAST-MODIFIED:20240711T085851Z UID:16553-1721043000-1721044800@www.oact.inaf.it SUMMARY:Neural Networs: new models for recovering the Cosmic Microwave Background DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE:  Monday\, July 15\, 11:30 a.m. \nORGANIZER: INAF OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Dr. José Manuel Casas González\, Instituto de Ciencias y Tecnologías Espaciales de Asturias (ICTEA) \nABSTRACT:The Cosmic Microwave Background\, the relic emission from the primordial Universe\, is one of the most important observables in Cosmology. Its recovery is generally carried out by parametric and (semi) blind methods after removing several Galactic and extragalactic emissions. However\, in order to take into account their non-linear behaviors\, Machine Learning approaches such Neural Networks seem to be promising for that task. In this talk\, I will describe how they begin to be an alternative and reliable methods for recovering the Cosmic Microwave Background. \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/neural-networs-new-models-for-recovering-the-cosmic-microwave-background/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/07/JMCasas_SeminarImage.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20240722T110000 DTEND;TZID=UTC:20240722T120000 DTSTAMP:20260404T194243 CREATED:20240719T141616Z LAST-MODIFIED:20240719T141620Z UID:16589-1721646000-1721649600@www.oact.inaf.it SUMMARY:Galactic Archaeology: decoding the fossil record of Galaxy formation and evolution DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE:  Monday\, July 22\, 11:00 a.m. \nORGANIZER: DFA UNICT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Dott. Santi Cassisi\, INAF-Osservatorio Astronomico d’Abruzzo \nABSTRACT:One of most important issue in Astrophysics is the achievement of a robust understanding of the sequence of processes that contributed to the building up of the Milky Way. This is obviously important not only “on a local scale” in order to recover the history of formation and evolution of the Galaxy\, but also\, more in general\, for understanding the formation process of spiral galaxies. In the last decade\, the advent of high precision photometric and spectroscopic surveys as well as the possibility to estimate\, thanks to the ESA Gaia mission\, accurate distance for a huge number of field stars\, combined with the development of an accurate theoretical framework\, is actually opening a new era for this kind of investigations.We will present some recent results – obtained by using this updated observational and theoretical framework – about the formation and early evolution of the Milky Way. \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/galactic-archaeology-decoding-the-fossil-record-of-galaxy-formation-and-evolution/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/07/Cassisi_11luglio.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20240923T110000 DTEND;TZID=UTC:20240923T120000 DTSTAMP:20260404T194243 CREATED:20240913T081704Z LAST-MODIFIED:20240913T081707Z UID:16744-1727089200-1727092800@www.oact.inaf.it SUMMARY:The Hot Neptune Desert DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE:  Monday\, September 23\, 11:00 a.m. \nORGANIZER: INAF-OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Dott. Christian Magliano (Università di Napoli Federico II\, Naples\, Italy) \nABSTRACT:The vast majority of close-in planets are either massive hot Jupiters capable of holding their atmosphere against the stellar photoevaporation or small rocky planets completely drained by the stellar radiation. We observe an unexpected dearth of highly irradiated Neptune- and Saturn-like planets orbiting their host star in less than 4-10 days\, called “Hot Neptune Desert”. In this talk\, I will present our recent findings from uniformly vetting 250 hot Neptune TESS candidates using a two-step vetting technique\, as well as discuss a cutting-edge approach to examine the problem under a new perspective. I will also discuss how the PLATO mission may enhance our understanding of the Hot Neptunes. \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/the-hot-neptune-desert/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/09/Locandina_page-0001.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20240927T180000 DTEND;TZID=UTC:20240928T130000 DTSTAMP:20260404T194243 CREATED:20240923T151411Z LAST-MODIFIED:20240926T132541Z UID:16789-1727460000-1727528400@www.oact.inaf.it SUMMARY:Notte Europea dei Ricercatori 2024 DESCRIPTION:SHARPER è il nome di uno dei progetti italiani sostenuti dalla Commissione Europea per la realizzazione della Notte Europea dei Ricercatori. \nSHARPER significa SHAring Researchers’ Passion for Enhanced Roadmaps e ha l’obiettivo di coinvolgere tutti i cittadini nella scoperta del mestiere di ricercatore e del ruolo che i ricercatori svolgono nel costruire il futuro della società attraverso l’indagine del mondo basata sui fatti\, le osservazioni e l’abilità nell’adattarsi e interpretare contesti sociali e culturali sempre più complessi e in continua evoluzione. \nPer l’edizione 2024\, SHARPER si svolgerà il 27 settembre in 15 città italiane\, tra cui Catania\, per raccontare la passione\, le scoperte e le sfide dei ricercatori di tutta Europa attraverso mostre\, spettacoli\, concerti\, giochi\, conferenze e centinaia di altre iniziative rivolte al grande pubblico. \nIn occasione della Notte dei Ricercatori 2024\, l’INAF-Osservatorio Astrofisico di Catania ha organizzato le seguenti attività per il pubblico che si svolgeranno tra il 27 e il 28 settembre: \n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\nL’ASTROFISICA PER IL FUTURO – I ricercatori guideranno i visitatori alla scoperta dei progetti di ricerca dell’INAF-Osservatorio Astrofisico di Catania e presenteranno gli strumenti e i software per la “Visualizzazione immersiva” – Per i più piccoli: concorso “Disegna il tuo pianeta reale o immaginario” e laboratorio didattico “Effetto serra in bottiglia” – “Gioco a premi: “Chi vuol essere astrofisico” \nA cura di P. Romano\, G. Cutispoto\, G. Scandariato\, D. Sicilia\, E. Sciacca\, F. Vitello\, L. Pelonero\, M. ImbroscianoData e ora: 27-09-2024 dalle 18:00 alle 24:00Luogo: Cortile Platamone (stand n. 16)\, Catania \n\n\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\nOSSERVAZIONI AL TELESCOPIO – I ricercatori dell’INAF-Osservatorio Astrofisico di Catania guideranno i visitatori nell’osservazione di alcuni oggetti celesti attraverso l’ausilio di un telescopio dedicato. \nA cura di L. Contarino\, A. Frasca\, J. Alonso SantiagoData e ora: 27-09-2024 dalle 21:00 alle 24:00 \n\n\n\n\nPer partecipare gli interessati dovranno rivolgersi allo Stand n. 16 – Cortile Platamone\, Palazzo della Cultura \n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\nTECNICHE DI RADIOASTRONOMIA PER LA MEDICINA – La radioastronomia ha sviluppato nel corso degli ultimi decenni moltissimi algoritmi atti alla generazione della miglior immagine possibile. è possibile applicare questi stessi algoritmi alla diagnostica in medicina? \nMini-Talk a cura di F. CavallaroData e ora: 27-09-2023 dalle 19:00 alle 19:10Luogo: Palazzo Sangiuliano\, Piazza Università\, 13 \n\n\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\nPERCHE’ SOLO SULLA TERRA? ALLA RICERCA DI VITA NELLO SPAZIO – Le attività di astrobiologia in corso a INAF-OACT. Presenza di composti utili alla vita nello spazio\, origini della vita sulla Terra\, ricerca di tracce di vita extraterrestre e rischi causati dal cambiamento climatico. \nMini-Talk a cura di R. G. Urso\, M. E. Palumbo\, C. ScirèData e ora: 27-09-2024 dalle 19:30 alle 19:40Luogo: Aula 13 – Rettorato Piazza Università\, 2 \n\n\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\nDALL’ASTRONOMIA ALL’INDUSTRIA PER LO STUDIO DI CATASTROFI NATURALI –Presentazione degli strumenti di analisi dei fenomeni astronomici e loro sfruttamento per la valutazione dei rischi legati a eventi climatici estremi nell’ambito della collaborazione industriale HaMMon finanziata dal PNRR. \nMini-Talk a cura di E. Sciacca\, F. Vitello\, L. Pelonero\, M. ImbroscianoData e ora: 27-09-2024 dalle 19:40 alle 19:50Luogo: Palazzo Sangiuliano Piazza Università\, 13 \n\n\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\nPORTE APERTE ALL’OSSERVATORIO – Visita all’Osservatorio Astrofisico di Catania. Osservazioni della fotosfera e cromosfera solare e 2 talk dal titolo: “Il Sole: Agente Primario del Clima sulla Terra” e “Gli effetti delle eruzioni solari sulla Terra”. \nLe prenotazioni saranno possibili a partire dal 24 Settembre attraverso il sito EventBrite (link) \nA cura di G. Cutispoto\, S.L. Guglielmino e L. ContarinoData e ora: 28-09-2024 dalle 9:30 alle 13:00Luogo: Osservatorio Astrofisico – via S. Sofia\, 78 URL:https://www.oact.inaf.it/event/notte-europea-dei-ricercatori-2024/ CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/png:https://www.oact.inaf.it/wp-content/uploads/2024/09/sharper-2024-condivisione-fb-1.png END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20241004T110000 DTEND;TZID=UTC:20241004T120000 DTSTAMP:20260404T194243 CREATED:20241001T090846Z LAST-MODIFIED:20241001T090849Z UID:16879-1728039600-1728043200@www.oact.inaf.it SUMMARY:Unraveling Space Weathering on Planetary and Astrophysical Surfaces DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE:  Friday\, October 4\, 11:00 a.m. \nORGANIZER: INAF-OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Prof. Thomas M. Orlando (School of Chemistry and Biochemistry and School of Physics\, Georgia Institute of Technology\, Atlanta\, GA\, USA) \nABSTRACT:It is well known that the interaction of energetic ions\, electrons and photons with surfaces and interfaces leads to non-thermal desorption via a process typically referred to as desorption induced by electronic transitions (DIET).  When DIET involves either electrons or photons\, these processes are generally referred to as electron-stimulated desorption and photon-stimulated desorption (PSD)\, respectively.  Recent attention has focused on understanding the role of non-thermal “space weathering” in the processing of interstellar grains and ices.Specifically\, there is deep interest in understanding the radiation processing of carbon grains in the solar nebula and unraveling the H2O formation mechanisms in solar nebula and planetary systems\, including the Moon. Using graphite grains\, the VUV photon-simulated oxidation of carbon grains via reactive scattering of water fragments produced by dissociative electron attachment at the buried interface was examined. The results suggested that VUV PSD at the buried water:carbon grain interface may help control the carbon inventory during planet formation. The inverse process\, (i.e\, the formation of water) may happen on metal-oxide samples such as mineral grains and lunar regolith samples\, that contain or are terminated by hydroxyl groups. Solar wind spaceweathering experiments of several Apollo lunar samples demonstrated that thermally activated recombinative desorption (RD) can be H2O sources [2\,3] and that electron-stimulated reactive scattering to produce water may also be occurring\, especially when the Moon is in the magnetopause[4].  RD can occur on a diurnal basis on the Moon and is prevalentduring meteoroid impacts. The latter is simulated by laser irradiation studies followed by state and velocity resolved detection of the produced water.  Finally\, evidence of space weathering and surface alteration has also been revealed using spatially resolved\, high-resolution nanoscale Fourier transform infrared imaging/spectroscopy correlated with photoluminescence (PL) on Apollo samples with different origins and history. \n[1]  J. Shi\, G. A. Greives\, and T. M. Orlando\, Astrophys. J 80(1) 24 (2015).[2] B. M. Jones\, et. al\, Geophys. Res. Lett.\, 45\, (2018) 10\,959–10\,967[3] B. M. Jones\, et. al\, Astrophys. J. Lett.\, 891 (2020) L43[4] 7. S. Li\, A. R. Poppe\, T. M. Orlando\, B. M. Jones\, O. J. Tucker\, W. M. Farrell\, and A. R. Hendrix\,”\, Nat. Astron. (2023) \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/unraveling-space-weathering-on-planetary-and-astrophysical-surfaces/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/10/OrlandoCataniaSlide.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20241021T113000 DTEND;TZID=UTC:20241021T123000 DTSTAMP:20260404T194243 CREATED:20241014T110601Z LAST-MODIFIED:20241014T110605Z UID:17010-1729510200-1729513800@www.oact.inaf.it SUMMARY:Stellar-wind-fed magnetospheres of magnetic massive stars DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE:  Monday\, October 21\, 11:30 a.m. \nORGANIZER: INAF-OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Prof. Stanley Owocki (University of Delaware) \nABSTRACT:A subpopulation (~9%) of hot (OB) stars exhibit strong (B~100-10\,000 G)\, large-scale (often predominantly dipolar) magnetic fields that channel their stellar wind outflows into circumstellar magnetospheres. For young\, rapidly rotating B-stars that have not yet been spun down by wind-magnetic braking\, wind material can be trapped between the Kepler co-rotation radius (RK) and the Alfven radius (RA)\, forming then a “Centrifugal Magnetosphere” (CM)\, with density set at the critical level for “Centrifugal Breakout” (CBO) against the confining magnetic tension. This talk discusses how such CBO controls both the onset and strength of observed H-alpha emission\, while the energetics of the associated CBO-driven magnetic reconnection match well the observed scalings of a non-thermal\, circularly polarized radio emission from such stars . \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/stellar-wind-fed-magnetospheres-of-magnetic-massive-stars/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/10/seminario_Owocky.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20241030T103000 DTEND;TZID=UTC:20241030T113000 DTSTAMP:20260404T194243 CREATED:20241028T144732Z LAST-MODIFIED:20241028T144735Z UID:17089-1730284200-1730287800@www.oact.inaf.it SUMMARY:Spectroscopic observations and modeling of solar flares: new insights from IRIS DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE:  Wednesday\, October 30\, 10:30 a.m. \nORGANIZER: INAF-OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Vanessa Polito (Lockheed Martin Solar and Astrophysics Laboratory) \nABSTRACT:Recent high-resolution observations from the IRIS satellites have enabled significant advancements in our understanding of the physical mechanisms at play during the impulsive phase of flares\, including details of how the non-thermal energy is released and propagated from the corona to the low-atmosphere through accelerated particles. At the same time\, the new discoveries have brought to light new unsolved questions and challenges for current models. This talk will provide some examples of the unique contributions to our understanding of flares from IRIS\, also in coordination with other solar observatories\, and how state-of-the-art heating models of flares can be constrained by the available imaging and spectral diagnostics. I will also discuss some of the outstanding problems in preparation for the next generation of solar missions. \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/spectroscopic-observations-and-modeling-of-solar-flares-new-insights-from-iris/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/10/seminario_Polito.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20241108T113000 DTEND;TZID=UTC:20241108T113000 DTSTAMP:20260404T194243 CREATED:20241106T111323Z LAST-MODIFIED:20241106T111326Z UID:17144-1731065400-1731065400@www.oact.inaf.it SUMMARY:From clouds to fragments: on the multi-scale interplay between gravity and turbulence DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE:  Friday\, November 8\, 11:30 a.m. \nORGANIZER: INAF-OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Dott. Alessio Traficante (IAPS-INAF) \nABSTRACT:The star formation mechanism occurs in well defined structures that can be identified and studied in great details in our own Galaxy: the process starts in giant molecular clouds\, objects extended up to several tens of parsecs\, within which elongated sub-structures\, called filaments\, may form. Inside filaments\, round-like condensations extended up to ~1pc in radius\, the so-called clumps\, are the natural birth site of the pre- and proto- stellar fragments\, inside which will origin the future stars.There are still many open questions in this hierarchical view of the star formation process: are these structures relatively confined from each other\,  or is the large-scale environment affecting the dynamics of the formation down to clumps and fragments? Is there a continuous interplay of the various forces involved in the process\, namely turbulence\, gravity (and magnetic fields)\, at all scales? Or is there a relevant scale at which gravity will start to dominate the collapse\, with critical implications on the star-formation mechanism?After a general overview of the problem\, I will present in details some recent results focused on the interplay between gravity and turbulence at the filament\, clump and fragment scales. To investigate this interplay at the larger scales\, we have combined the dynamics of so-called 70 micron quiet clumps\, i.e. very pristine regions not yet strongly affected by feedbacks\, with the dynamics of the parent filaments in which they are embedded. At smaller scales\, I will discuss the different scenarios of fragments formation in light of the most recent results from the SQUALO (Star formation in QUiescent And Luminous Objects) project. This ALMA survey has been designed to investigate the formation properties in a sample of massive clumps selected to be at various evolutionary stages and with the common feature that they are all accreting at the clump scales.Our results show that a large scales we observe a continuous interplay between turbulence and gravity\, where the former creates structures at all scales and the latter takes the lead above a critical value of the surface density is reached\, ~ 0.1 g cm^-2. At the same time\, the fragmentation properties show several indications that the fragment are “clump-fed”\, i.e. the process is dynamical and the gravity dominates the collapse inside our massive clumps. \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/from-clouds-to-fragments-on-the-multi-scale-interplay-between-gravity-and-turbulence/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2024/11/traficante_seminario.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20250304T151500 DTEND;TZID=UTC:20250304T151500 DTSTAMP:20260404T194243 CREATED:20250303T091409Z LAST-MODIFIED:20250305T091510Z UID:17753-1741101300-1741101300@www.oact.inaf.it SUMMARY:Lo Spazio come bene comune dell'umanità DESCRIPTION:DATA:  Martedì\, 4 Marzo\, 15:15 \nORGANIZZATORE: INAF-OACT \nLOCATION: AULA OVEST (INAF-OACT) \nSPEAKER: Prof.ssa Patrizia Caraveo (Presidente della Società Astronomica Italiana e Dirigente di Ricerca presso INAF-IASF di Milano) \nAd oggi\, ci sono in orbita circa 10.000 satelliti operativi (e non meno di 3.000 per così dire “defunti”). Offrono servizi di grande utilità per migliorare la qualità della nostra vita\, ma occorre considerare le conseguenze della crescita esplosiva nel loro numero. Benché operino nello spazio\, i satelliti hanno infatti un impatto non trascurabile sulla vita e sulle attività che si svolgono sulla Terra e sulla qualità della nostra atmosfera. Lo spazio è parte integrante dell’ecosistema terrestre e prima ce ne renderemo conto meglio sarà. URL:https://www.oact.inaf.it/event/lo-spazio-come-bene-comune-dellumanita/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2025/03/Patrizia-Caraveo-2.jpg END:VEVENT BEGIN:VEVENT DTSTART;TZID=UTC:20250319T113000 DTEND;TZID=UTC:20250319T113000 DTSTAMP:20260404T194243 CREATED:20250304T175229Z LAST-MODIFIED:20250305T075408Z UID:17742-1742383800-1742383800@www.oact.inaf.it SUMMARY:Status and future of 21-cm cosmology during the first billion years DESCRIPTION:Recording: https://www.oact.inaf.it/seminars/ \nDATE:  Wednesday\, March 19\, 11:30 a.m. \nORGANIZER: INAF-OACT \nLOCATION: AULA OVEST (INAF-OACT) + remote \nLink for the remote audience:https://meet.google.com/wvf-uwxo-oyj \nSPEAKER: Prof. Andrei Mesinger (Scuola Normale Superiore\, Pisa) \nABSTRACT:The 21-cm hyperfine line of neutral hydrogen is set to revolutionize studies of the first billion years\, spanning the cosmic dawn of the first stars and eventual reionization of our Universe. I will discuss the potential of this probe in learning about the unknown astrophysics of the first galaxies as well as physical cosmology. Current upper limits on the cosmic 21-cm power spectrum already provide new insights into the heating of the intergalactic medium\, and the X-ray sources in the first galaxies. I will discuss the upcoming steps\, including the main challenges\, that will eventually lead to the Nobel prize-worthy 3D map of half of our observable Universe with the Square Kilometer Array (SKA) telescope.Our results show that a large scales we observe a continuous interplay between turbulence and gravity\, where the former creates structures at all scales and the latter takes the lead above a critical value of the surface density is reached\, ~ 0.1 g cm^-2. At the same time\, the fragmentation properties show several indications that the fragment are “clump-fed”\, i.e. the process is dynamical and the gravity dominates the collapse inside our massive clumps. \n  \nA few rules:— in case of large in-person attendance\, attendees may be asked to wear a face mask— before joining\, make sure you are using your institutional inaf.it account if you have one (otherwise we will grant you permission to join)— please do not forget to mute your microphone and switch off your webcam when access the virtual room— for questions leave a message in the chat\, the answers at the end of the webinar— the seminar will be recorded\, so if you are interested in it\, please contact us to get the link to the registration. URL:https://www.oact.inaf.it/event/status-and-future-of-21-cm-cosmology-during-the-first-billion-years/ LOCATION:Sede A. Riccò\, Via Santa Sofia 78\, Catania CATEGORIES:Eventi & Seminari ATTACH;FMTTYPE=image/jpeg:https://www.oact.inaf.it/wp-content/uploads/2025/03/Seminario_mesinger.jpg END:VEVENT END:VCALENDAR