A transiting companion to the eclipsing binary KIC002856960
A transiting companion to the eclipsing binary KIC002856960
复制标题
食双星 KIC002856960 的凌日伴星
DOI：
10.1051/0004-6361/201219479
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发表时间：
2012
影响因子：
6.5
通讯作者：
Armstrong D
中科院分区：
文献类型：
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作者：
Armstrong D
我们提出了一个早期的结果，从一个自动搜索ofKeplereclipsing二进制系统的circumbinary同伴。在短周期食双星KIC 002856960中发现了一个有趣的第三纪信号。这第三个天体导致了每204.2天发生一次的光变曲线中类似凌日的特征，而系统的其他两个组成部分则以6.2小时为周期显示日食。第三天体的变化持续约1.26天，或4.9个双星轨道周期。在双星轨道与第三天体的每次交叉过程中，由于近距离双星重复地与第三天体对齐或不对齐，因此可以观察到多个单独的凌日。在这个阶段，我们无法区分一个行星伴星与一个近距离食双星，或者一个由三颗恒星组成的等级三重食系统。这两种可能性进行了探讨，并提出了光变曲线。
We present an early result from an automated search ofKeplereclipsing binary systems for circumbinary companions. An intriguing tertiary signal has been discovered in the short period eclipsing binary KIC002856960. This third body leads to transit-like features in the light curve occurring every 204.2 days, while the two other components of the system display eclipses on a 6.2 h period. The variations due to the tertiary body last for a duration of ~1.26 days, or 4.9 binary orbital periods. During each crossing of the binary orbit with the tertiary body, multiple individual transits are observed as the close binary stars repeatedly move in and out of alignment with the tertiary object. We are at this stage unable to distinguish between a planetary companion to a close eclipsing binary, or a hierarchical triply eclipsing system of three stars. Both possibilities are explored, and the light curves presented.
DOI：
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发表时间：
2021
期刊：
影响因子：
--
作者：
Hiroaki Yoshimura
通讯作者：
Hiroaki Yoshimura