Stellar dynamics of low mass stars from the surface to the interior measured by CoRoT and Kepler

TL;DR

This paper reviews recent advances in understanding the surface and internal rotation and magnetic fields of low-mass stars using data from CoRoT and Kepler, highlighting new insights into stellar magnetism and gyrochronology.

Contribution

It synthesizes recent observational and theoretical developments in stellar dynamics, emphasizing the coupling of surface and interior studies and proposing new constraints on stellar magnetic fields and rotation laws.

Findings

Detection of possible strong internal magnetic fields in stars above 1.2-1.4 solar masses.

Improved constraints on gyrochronology relations for low-mass stars.

Contextualization of the Sun's magnetism relative to solar-analog stars.

Abstract

Continuous high-precision photometry of stars, provided by space missions such as CoRoT, Kepler, and K2, represents a unique way to study stellar rotation and magnetism. The coupling of these studies of the surface dynamics with asteroseismology is changing our view to surface and internal dynamics. In this proceedings I will provide the latest developments in the understanding of surface and internal rotation and magnetic fields. I will also discuss the possible discovery of strong internal magnetic fields of dynamo origin in the convective cores of stars above 1.2-1.4 solar masses. I will finish by providing constraints on gyrochronology laws for low-mass stars and put the Sun into context of its magnetism when compared to other solar-analog stars.