Meta-analysis of photometric and asteroseismic measurements of stellar rotation periods: the Lomb-Scargle periodogram, autocorrelation function, wavelet and rotational splitting analysis for 92 Kepler asteroseismic targets

Abstract

We perform photometric (the Lomb-Scargle periodogram, autocorrelation, and wavelet) and asteroseismic analyses of 92 Kepler solar-like main-sequence stars to understand the reliability of the measured stellar rotation periods. We focus on the 70 stars without reported stellar companions, and classify them into four groups according to the quarter-to-quarter variance of the Lomb-Scargle period and the precision of the asteroseismic period. We present detailed individual comparison among photometric and asteroseismic constraints for these stars. We find that most of our targets exhibit significant quarter-to-quarter variances in the photometric periods, suggesting that the photometrically estimated period should be regarded as a simplified characterization of the true stellar rotation period, especially under the presence of the latitudinal differential rotation. On the other hand, there are a fraction of stars with a relatively small quarter-to-quarter variance in the photometric periods, most of which have consistent values for asteroseismically and photometrically estimated rotation periods. We also identify over ten stars whose photometric and asteroseismic periods significantly disagree, which would be potentially interesting targets for further individual investigations.

References in corpus (17)

• Modules for Experiments in Stellar Astrophysics (MESA)
• The generalised Lomb-Scargle periodogram. A new formalism for the floating-mean and Keplerian periodograms
• astroquery: An Astronomical Web-Querying Package in Python
• Gaia Early Data Release 3 -- Catalogue validation
• Standing on the shoulders of Dwarfs: the Kepler asteroseismic LEGACY sample II - radii, masses, and ages
• Standing on the shoulders of Dwarfs: the $Kepler$ asteroseismic LEGACY sample I - oscillation mode parameters
• Testing the recovery of stellar rotation signals from Kepler light curves using a blind hare-and-hounds exercise
• Asteroseismology of solar-type stars
• High-resolution imaging of $Kepler$ planet host candidates. A comprehensive comparison of different techniques
• The Sun is less active than other solar-like stars
• Surface rotation of Kepler red giant stars
• Determination of Three-dimensional Spin-orbit Angle with Joint Analysis of Asteroseismology, Transit Lightcurve, and the Rossiter-McLaughlin Effect: Cases of HAT-P-7 and Kepler-25
• Weakened magnetic braking supported by asteroseismic rotation rates of Kepler dwarfs
• Starspot signature on the light curve: Learning about the latitudinal distribution of spots
• The misaligned orbit of the Earth-sized planet Kepler-408b
• The Stars Kepler Missed: Investigating the Kepler Target Selection Function Using Gaia DR2
• Asteroseismic determination of the stellar rotation period of the Kepler transiting planetary systems and its implications for the spin-orbit architecture

Cited by in corpus (4)

• Kepler meets Gaia DR3: homogeneous extinction-corrected color-magnitude diagram and binary classification
• Transition of latitudinal differential rotation as a possible cause of weakened magnetic braking of solar-type stars
• Searching for stellar cycles on low mass stars using TESS data
• Modeling photometric variations due to a global inhomogeneity on an obliquely rotating star: application to lightcurves of white dwarfs