The first rotation periods in Praesepe
نویسندگان
چکیده
منابع مشابه
The first rotation periods in Praesepe
The cluster Praesepe (age ∼ 650Myr) is an ideal laboratory to study stellar evolution. Specifically, it allows us to trace the long-term decline of rotation and activity on the main-sequence. Here we present rotation periods measured for five stars in Praesepe with masses of 0.1 − 0.5M⊙ – the first rotation periods for members of this cluster. Photometric periodicities were found from two exten...
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We have Fourier-analyzed 941 K2 light curves (LCs) of likely members of Praesepe, measuring periods for 86% and increasing the number of rotation periods (P) by nearly a factor of four. The distribution of P versus ( ) V Ks , a mass proxy, has three different regimes: ( ) V Ks <1.3, where the rotation rate rapidly slows as mass decreases; 1.3< ( ) V Ks <4.5, where the rotation rate slows ...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2007
ISSN: 0035-8711,1365-2966
DOI: 10.1111/j.1365-2966.2007.12333.x