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

B. J. Mochejska, K. Z. Stanek, D. D. Sasselov, A. H. Szentgyorgyi, G. Á Bakos, J. Devor, V. Hradecky, D. P. Marrone, J. N. Winn, M. Zaldarriaga

Research output: Contribution to journalArticle

45 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)2856-2868
Number of pages13
JournalAstronomical Journal
Volume129
Issue number6
DOIs
StatePublished - Jun 1 2005
Externally publishedYes

Keywords

  • Binaries: eclipsing
  • Novae, cataclysmic variables
  • Planetary systems
  • Stars: variables: other

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Mochejska, B. J., Stanek, K. Z., Sasselov, D. D., Szentgyorgyi, A. H., Bakos, G. Á., Devor, J., Hradecky, V., Marrone, D. P., Winn, J. N., & Zaldarriaga, M. (2005). Planets in stellar clusters extensive search. III. A search for transiting planets in the metal-rich open cluster NGC 6791. Astronomical Journal, 129(6), 2856-2868. https://doi.org/10.1086/430219