@article{25ed45c010984d2e85bc06b17e9953f3,
title = "Constraining differential rotation of Sun-like stars from asteroseismic and starspot rotation periods",
abstract = "In previous work, we identified six Sun-like stars observed by Kepler with exceptionally clear asteroseismic signatures of rotation. Here, we show that five of these stars exhibit surface variability suitable for measuring rotation. We compare the rotation periods obtained from light-curve variability with those from asteroseismology in order to further constrain differential rotation. The two rotation measurement methods are found to agree within uncertainties, suggesting that radial differential rotation is weak, as is the case for the Sun. Furthermore, we find significant discrepancies between ages from asteroseismology and from three different gyrochronology relations, implying that stellar age estimation is problematic even for Sun-like stars.",
keywords = "Asteroseismology, Methods: data analysis, Stars: rotation, Stars: solar-type, Starspots",
author = "Nielsen, {M. B.} and H. Schunker and L. Gizon and Ball, {W. H.}",
note = "Funding Information: The authors acknowledge research funding by Deutsche Forschungsgemeinschaft (DFG) under grant SFB 963/1 “Astrophysical flow instabilities and turbulence” (Project A18). L.G. acknowledges support from the Center for Space Science at NYU Abu Dhabi Institute under grant 73-71210-ADHPG-G1502. This paper includes data collected by the Kepler mission. Funding for the Kepler mission is provided by the NASA Science Mission directorate. Data presented in this paper were obtained from the Mikulski Archive for Space Telescopes (MAST). STScI is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. Support for MAST for non-HST data is provided by the NASA Office of Space Science via grant NNX09AF08G and by other grants and contracts. Publisher Copyright: {\textcopyright} ESO, 2015.",
year = "2015",
month = oct,
day = "1",
doi = "10.1051/0004-6361/201526615",
language = "English (US)",
volume = "582",
journal = "Astronomy and Astrophysics",
issn = "0004-6361",
publisher = "EDP Sciences",
}