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UID:35@osups.universite-paris-saclay.fr
DTSTART;TZID=Europe/Paris:20251106T110000
DTEND;TZID=Europe/Paris:20251106T120000
DTSTAMP:20251024T130252Z
URL:https://osups.universite-paris-saclay.fr/calendrier/rossby-and-inertia
 l-modes-in-the-sun-and-stars/
SUMMARY:Rossby and inertial modes in the Sun and stars
DESCRIPTION:&nbsp\;\nRossby and inertial modes in the Sun and stars by Jord
 an Philidet (LIRA\, Observatoire de Paris) \n\nRossby waves are oscillatin
 g patterns in fluid vorticity which appear at very large scales in rotatin
 g hydrodynamic systems. If Rossby waves were first discovered in the Earth
 's atmosphere and oceans\, and found to play an active role in controlling
  the global climate\, they are now detected in the atmosphere of other pla
 nets of the Solar System as well. More recently\, they have also been dete
 cted on the surface of the Sun\, where they take the form of standing mode
 s which extend from the surface down to the deep interior. These inertial 
 modes are very sensitive to internal rotation\, as well as the thermal str
 ucture and dynamics of the solar convective envelope\, and are now being u
 sed to probe otherwise inaccessible properties of the deep regions of the 
 Sun. These inertial modes also leave a signature in the photometric light 
 curves of other solar-like stars\, which is now detectable in Kepler data.
  This opens the possibility to extend the realm of asteroseismology to a b
 rand new class of oscillations previously untapped\, in particular in the 
 context of the PLATO mission\, due to launch in late 2026.\n\nIn this semi
 nar\, I will present the latest observational and theoretical developments
  in the study of Rossby and inertial modes\, both in the solar and stellar
  contexts\, and I will in particular explain how they can be used to bette
 r constrain the internal structure and dynamics of the Sun and stars.\nLie
 u : IAS\, bât. 121\, salle 123\n\n&nbsp\;
CATEGORIES:Séminaires
LOCATION:IAS\, Bât. 121 rue Jean Teillac\, Orsay\, 91400\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Bât. 121 rue Jean Teillac\
 , Orsay\, 91400\, France;X-APPLE-RADIUS=100;X-TITLE=IAS:geo:0,0
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TZID:Europe/Paris
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DTSTART:20251026T020000
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