Rotation of solar analogs cross-matching Kepler and Gaia DR2

Abstract

A major obstacle to interpreting the rotation period distribution for main-sequence stars from Kepler mission data has been the lack of precise evolutionary status for these objects. We address this by investigating the evolutionary status based on Gaia Data Release 2 parallaxes and photometry for more than 30,000 Kepler stars with rotation period measurements. Many of these are subgiants, and should be excluded in future work on dwarfs. We particularly investigate a 193-star sample of solar analogs, and report newly-determined rotation periods for 125 of these. These include 54 stars from a prior sample, of which can confirm the periods for 50. The remainder are new, and 10 of them longer than solar rotation period, suggesting that sun-like stars continue to spin down on the main sequence past solar age. Our sample of solar analogs could potentially serve as a benchmark for future missions such as PLATO, and emphasizes the need for additional astrometric, photometric, and spectroscopic information before interpreting the stellar populations and results from time-series surveys.

10 pages, 8 Figures, 2 tables. accepted to be published on The Astrophysical Journal (June 8, 2020)

References in corpus (12)

• The Gaia mission
• The generalised Lomb-Scargle periodogram. A new formalism for the floating-mean and Keplerian periodograms
• Measuring the rotation period distribution of field M-dwarfs with Kepler
• The Mass-Dependence of Angular Momentum Evolution in Sun-Like Stars
• A spin-down clock for cool stars from observations of a 2.5-billion-year-old cluster
• Inferring probabilistic stellar rotation periods using Gaussian processes
• Calibrating Gyrochronology using Kepler Asteroseismic targets
• Testing the recovery of stellar rotation signals from Kepler light curves using a blind hare-and-hounds exercise
• HIP 56948: A Solar Twin With a Low Lithium Abundance
• Rotation periods and ages of solar analogs and solar twins revealed by the Kepler Mission
• A large sample of calibration stars for Gaia: log g from Kepler and CoRoT
• Constraining the evolution of stellar rotation using solar twins

Cited by in corpus (8)

• Powering Stellar Magnetism: Energy Transfers in Cyclic Dynamos of Sun-like Stars
• Inferring the Rotation Period Distribution of Stars from their Projected Rotation Velocities and Radii: Application to late-F/early-G Kepler Stars
• Searching for new solar twins: The Inti survey for the Northern Sky
• The Solar Wind Angular Momentum Flux as Observed by Parker Solar Probe
• Hunting for anti-solar differentially rotating stars using the Rossby number -- An application to the Kepler field
• The Contribution of Alpha Particles to the Solar Wind Angular Momentum Flux in the Inner Heliosphere
• Impact of anti-solar differential rotation in mean-field solar-type dynamos -- Exploring possible magnetic cycles in slowly rotating stars
• The solar-wind angular-momentum flux observed during Solar Orbiter's first orbit