|
||||||||
|
|
Planets in Stellar Clusters Extensive SearchIn 2001 we had undertaken a project, Planets in Stellar Clusters Extensive Search (PISCES), to search for transiting planets in open clusters.We have obtained observations for three open clusters NGC 6791, NGC 2158 and NGC 188 with the FLWO 1.2 m telescope under very good observing conditions. We have collected 1118, 965 and 840 deep R-band images during 84, 59 and 45 nights of observations, respectively. Such temporal coverage enabled us to achieve detection limits of 75%, 71% and 28% of all transiting planets with periods between 1 and 10 days. The limit imposed by the achieved photometric precision restricts us to 10%, 7% and 3% of these planets, which corresponds to 1.5, 0.13 and 0.02 expected detections for each of the clusters. We have identified one possible transiting planet candidate in NGC 2158 and discovered a total of 176 new variable stars in the three clusters. With the publication of the last paper in 2008, the project has come to a close. Members of the PISCES team
|