2016/03/21 by Guillermo Gonzalez, Guillermo González · 18 citations
Physics and Astronomy · #Astro and Planetary Science #Astronomy #Astrophysics #Binary star #Kepler #Light curve #Photometry (optics) #Physics #Solar and Space Plasma Dynamics #Stars #Starspot #Stellar, planetary, and galactic studies #astro-ph.SR
paper · pdf · doi:10.1093/mnras/stw700
published in Monthly Notices of the Royal Astronomical Society 459(1), 1060-1068 (Oxford University Press) · accepted for publication in MNRAS
arxiv created 2016/03/21 · openalex publication_date 2016/03/28 · arxiv updated 2016/04/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We examine the photometric variability of stars in the M 67 field using Kepler/K2-Campaign-5 light curves. Variabilities and periods were determined for 639 stars. The mean photometric period of 28 single Sun-like members stars in M 67 is 23.4 ± 1.2 d. This corresponds to a gyro-age of 3.7 ± 0.3 Gyr, assuming the periods can be associated with rotation. The intrinsic variabilities of the solar analogues are greater than the Sun's variability, as measure from VIRGO fluxes. We also find evidence that the single cluster members have a different distribution of variability than the binary members.