BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Angular momentum transport in stars: new theoretical advances and 
 challenges - Dr. Stéphane Mathis (CEA)
DTSTART:20150216T160000Z
DTEND:20150216T170000Z
UID:TALK56164@talks.cam.ac.uk
CONTACT:Jean Teyssandier
DESCRIPTION:The rotational dynamics of stars strongly impacts their evolut
 ion and those of their planetary and galactic environment. Space helio- an
 d asteroseismology recently allowed an observational revolution in this do
 main. They revealed\, e.g.\, that the radiative core of the Sun is close t
 o a uniform rotation while those of subgiant and red giant stars slow down
  drastically during their evolution. At the same time\, some intermediate-
 mass and massive stars’ radiative envelopes host only weak differential 
 rotation.\n\nThese important results "have made angular momentum transport
  in stars throughout their life time an observational science” (Kurtz 20
 14) and demonstrate that powerful dynamical mechanisms (internal gravity w
 aves\, magnetic fields\, instabilities and turbulence) are in action to ex
 tract angular momentum all along the evolution of stars. 
In this semina
 r\, I will give a complete review of our current understanding of the theo
 ry of angular momentum transport in stars and of challenges that must be a
 ddressed.
LOCATION:MR14\,  Centre for Mathematical Sciences\, Wilberforce Road\, Cam
 bridge
END:VEVENT
END:VCALENDAR