Fast Rotating solar-like stars using asteroseismic datasets

TL;DR

This paper utilizes Kepler asteroseismic data to identify and analyze fast-rotating solar-like stars by examining lightcurve features related to surface magnetic activity and differential rotation.

Contribution

It introduces a method to detect fast surface rotation in solar-like stars using short-cadence Kepler lightcurves and magnetic activity indicators.

Findings

Identification of candidate fast rotators among Kepler solar-like stars

Establishment of a methodology for analyzing surface rotation from lightcurves

Potential to expand understanding of stellar magnetic activity and rotation rates

Abstract

The NASA Kepler mission is providing an unprecedented set of asteroseismic data. In particular, short-cadence lightcurves (~60s samplings), allow us to study solar-like stars covering a wide range of masses, spectral types and evolutionary stages. Oscillations have been observed in around 600 out of 2000 stars observed for one month during the survey phase of the Kepler mission. The measured light curves can present features related to the surface magnetic activity (starspots) and, thus we are able to obtain a good estimation of the surface (differential) rotation. In this work we establish the basis of such research and we show a potential method to find stars with fast surface rotations.