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X-WR-CALDESC:Évènements pour CRAL
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DTSTART;TZID=Europe/Paris:20250207T110000
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DTSTAMP:20260510T075403
CREATED:20250113T175215Z
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UID:7684-1738926000-1738929600@cral.osu-lyon.fr
SUMMARY:CRAL@Obs seminar by Nathan Hara (LAM)
DESCRIPTION:Detecting Earth-analogs with radial velocities and photometry \nAbstract:\nUnderstanding how planets form and searching for life beyond Earth are two key goals in exoplanet research. To make progress on both fronts\, it is crucial to discover Earth analogs. However\, detecting them is a major challenge\, as their faint signals are difficult to disentangle from astrophysical and instrumental noise. In this talk\, I will present new data analysis techniques that significantly enhance the detectability of Earth analogs\, and discuss the recent discovery of HD 20794 c\, a 5.8M🜨 minimum mass crossing the habitable zone of a nearby star. Additionally\, I will show that the methods developed for exoplanets can benefit other areas of astronomy—in particular how new stellar variability models open a new way to perform Doppler imaging.
URL:https://cral.osu-lyon.fr/event/cralobs-seminar-by-nathan-hara-lam/
LOCATION:Observatoire
ATTACH;FMTTYPE=image/png:https://cral.osu-lyon.fr/wp-content/uploads/2023/11/image_defaut.png
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DTSTART;TZID=Europe/Paris:20250214T110000
DTEND;TZID=Europe/Paris:20250214T120000
DTSTAMP:20260510T075403
CREATED:20241119T102700Z
LAST-MODIFIED:20250124T164343Z
UID:7572-1739530800-1739534400@cral.osu-lyon.fr
SUMMARY:CRAL@Obs seminar by Joe Lewis (IAP)
DESCRIPTION:TBD
URL:https://cral.osu-lyon.fr/event/cralobs-seminar-by-joe-lewis-iap/
LOCATION:Observatoire
ATTACH;FMTTYPE=image/png:https://cral.osu-lyon.fr/wp-content/uploads/2023/11/image_defaut.png
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20250221T110000
DTEND;TZID=Europe/Paris:20250221T120000
DTSTAMP:20260510T075403
CREATED:20241119T113621Z
LAST-MODIFIED:20250217T173617Z
UID:7575-1740135600-1740139200@cral.osu-lyon.fr
SUMMARY:CRAL@Obs seminar by Valentina D'Odorico (INAF)
DESCRIPTION:Understanding metal enrichment in the early Universe through quasar spectroscopy —\n \nChemical elements heavier than helium – commonly referred to as “metals” in astrophysics – are synthesized by stars and distributed in the surrounding medium through various feedback mechanisms. This process plays a pivotal role in the baryon cycle of galaxies and is crucial for understanding galaxy evolution. In this seminar\, I will provide an overview of how quasar absorption spectroscopy has been instrumental in studying the properties of metals within the diffuse circumgalactic and intergalactic media over the past two decades. I will particularly focus on observations spanning the timescale between the epoch of Reionization and the so-called cosmic noon at the peak of star formation\, using state-of-the-art data like the spectra of z~6 quasars from the XQR-30 survey. Additionally\, I will discuss the exciting challenges in the study of high redshift metal enrichment and how next-generation extremely large telescopes will help us address these issues.  \n 
URL:https://cral.osu-lyon.fr/event/cralobs-seminar-by-valentina-dodorico-inaf/
LOCATION:Observatoire
ATTACH;FMTTYPE=image/png:https://cral.osu-lyon.fr/wp-content/uploads/2023/11/image_defaut.png
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DTSTART;TZID=Europe/Paris:20250228T110000
DTEND;TZID=Europe/Paris:20250228T120000
DTSTAMP:20260510T075403
CREATED:20241119T113818Z
LAST-MODIFIED:20241119T113818Z
UID:7577-1740740400-1740744000@cral.osu-lyon.fr
SUMMARY:CRAL@Obs seminar by Guillaume Bourdarot (MPE)
DESCRIPTION:TBD
URL:https://cral.osu-lyon.fr/event/cralobs-seminar-by-guillaume-bourdarot-mpe/
LOCATION:Observatoire
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