Rotation and Convection in the Sun

Speaker: 
Affiliation: 
University of Oxford
Location: 
Higgs Centre Seminar Room, JCMB
Date: 
Friday, November 28, 2014
Time: 
13:00 to 14:00
Abstract:
 
Helioseismology techniques have revealed the details of the Sun's
internal rotation with remarkable precision.  The radiative zone
is nearly uniformly rotating, whereas the convective zone differential
rotation is generally constant on cones, dominated by its latitudinal
(not cylindrical) gradient.  In this talk, I will show how
standard dynamics augmented by a few simple ideas naturally
reproduces this pattern, and why uniform or cylindrical rotation is
not possible.  The theory predicts very different internal rotation
for stars (or suitable planets) lacking a radiative-convective
boundary surface.