Planets in stellar clusters extensive search. III. A search for transiting planets in the metal-rich open cluster NGC 6791

被引：52
作者：
Mochejska, BJ
Stanek, KZ
Sasselov, DD
Szentgyorgyi, AH
Bakos, GA
Devor, J
Hradecky, V
Marrone, DP
Winn, JN
Zaldarriaga, M
机构：
[1] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA
[2] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
[3] Hungarian Acad Sci, Konkoly Observ, H-1525 Budapest, Hungary
来源：
ASTRONOMICAL JOURNAL | 2005年 / 129卷 / 06期
关键词：
binaries : eclipsing; novae; cataclysmic variables; planetary systems; stars : variables : other;
D O I：
10.1086/430219
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have undertaken a long-term project, Planets in Stellar Clusters Extensive Search (PISCES), to search for transiting planets in open clusters. In this paper we present the results for NGC 6791, a very old, populous, metal-rich cluster. We have monitored the cluster for over 300 hr, spread over 84 nights. We have not detected any good transiting planet candidates. Given the photometric precision and temporal coverage of our observations and the current best estimates for the frequency and radii of short-period planets, the expected number of detectable transiting planets in our sample is 1.5. We have discovered 14 new variable stars in the cluster, most of which are eclipsing binaries, and present high-precision light curves spanning 2 years for these new variables and also the previously known variables.
引用
收藏
页码：2856 / 2868
页数：13
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