Rotation and Convection in the Sun
Higgs Centre colloquium
Rotation and Convection in the Sun
- Event time: 1:00pm
- Event date: 28th November 2014
- Speaker: Steven Balbus (Oxford)
- Location: Higgs Centre Seminar Room, Room 4305, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB
Event details
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.
About Higgs Centre colloquia
The Higgs Centre Colloquia are a fortnightly series of talks aimed at a wide-range of topical Theoretical Physics issues..