Abstract Details

Name: Bidya Binay Karak
Affiliation: High Altitude Observatory, National Center for Atmospheric Research
Conference ID: ASI2017_1276
Title : Why do stars rotate differentially?
Authors and Co-Authors : P. J. Kapyla, M. J. Kapyla (Max Plank Institute for Solar System Research, Germany) & A. Brandenburg (Colorado University, USA)
Abstract Type : Oral
Abstract Category : Sun and the Solar System
Abstract : Stars do not rotate like a solid body. For the Sun we know that the equator rotates faster than the higher latitudes. This type of rotation profile is called the solar-like differential rotation which has been observed in many stars. However, the opposite case where the equator rotates slower than the higher latitudes, referred to as the anti-solar differential rotation, is also possible. I shall discuss the origin of these types of differential rotations using global MHD simulations. Then I shall discuss how with the decrease of the Coriolis number the differentiation rotation changes from solar to anti-solar profiles. The influence of the dynamo-generated magnetic field will also be discussed.