Variability among stars in the M 67 field from Kepler/K2-Campaign-5 light curves

被引：14
|
作者：
Gonzalez, Guillermo [1 ]
机构：
[1] Ball State Univ, Dept Phys & Astron, 2000 W Univ Ave, Muncie, IN 47306 USA
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2016年 / 459卷 / 01期
关键词：
techniques: photometric; stars: rotation; stars: variables: general; open clusters and associations: individual: M 67; OPEN CLUSTER M67; PHOTOMETRIC VARIABILITY; RADIAL-VELOCITIES; VARIABLE-STARS; NGC; 6819; ROTATION; BINARY; SUN;
D O I：
10.1093/mnras/stw700
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We examine the photometric variability of stars in the M67 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.
引用
收藏
页码：1060 / 1068
页数：9
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