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X-ORIGINAL-URL:https://www.oact.inaf.it
X-WR-CALDESC:Eventi per Osservatorio Astrofisico di Catania
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DTSTART:20240101T000000
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DTSTART;TZID=UTC:20240923T110000
DTEND;TZID=UTC:20240923T120000
DTSTAMP:20260425T222539
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
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DTSTART;TZID=UTC:20240514T090000
DTEND;TZID=UTC:20240516T180000
DTSTAMP:20260425T222540
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
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