Thinkshop 16

The rotation periods of cool stars: Measurements, uses, connections and prospects

23rd - 26th September 2019

Talk

Surface differential rotation -- from dwarfs to giants

Levente Kriskovics, Konkoly Observatory (MTA CSFK)

Differential rotation is a key component of the Omega-effect, which regenerates the large-scale toroidal magnetic fields during a dynamo cycle, however, dynamos in different types of stars work in different ways. In this talk, I aim to give an overview of how surface differential rotation manifest on different types of stars (K dwarfs, solar analogues, giant RS CVns, single giants, first lithium-dredge up, etc) showcasing results on the topic from the last several years, along with some implications of these results. Relations between astrophysical parameters and differential rotation are also discussed.