Survey for Transiting Extrasolar Planets in Stellar Systems: III. A Limit on the Fraction of Stars with Planets in the Open Cluster NGC 1245

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dc.creatorBurke, Christopher J.
dc.creatorGaudi, B. Scott
dc.creatorDePoy, D. L.
dc.creatorPogge, Richard W.
dc.date2005-12-07
dc.date.accessioned2026-07-07T11:25:04Z
dc.date.available2026-07-07T11:25:04Z
dc.descriptionWe analyze a 19-night photometric search for transiting extrasolar planets in the open cluster NGC 1245. An automated transit search algorithm with quantitative selection criteria finds six transit candidates; none are bona fide planetary transits. We characterize the survey detection probability via Monte Carlo injection and recovery of realistic limb-darkened transits. We use this to derive upper limits on the fraction of cluster members with close-in Jupiter-radii, RJ, companions. We carefully analyze the random and systematic errors of the calculation. For similar photometric noise and weather properties as this survey, observing NGC 1245 twice as long results in a tighter constraint on "Hot Jupiter", HJ, companions than observing an additional cluster of similar richness as NGC 1245 for the same length of time as this survey. This survey observed ~870 cluster members. If 1% of stars have 1.5 RJ HJ companions, we expect to detect one planet for every 5000 dwarf stars observed for a month. To reach a ~2% upper limit on the fraction of stars with 1.5 RJ HJ companions, we conclude a total sample size of ~7400 dwarf stars observed for at least a month will be needed. Results for 1.0 RJ companions, without substantial improvement in the photometric precision, will require a small factor larger sample size.
dc.description24 pages, 15 figures, submitted AJ
dc.identifierhttps://arxiv.org/abs/astro-ph/0512207
dc.identifierhttp://arxiv.org/abs/astro-ph/0512207
dc.identifierAstron.J.132:210-232,2006
dc.identifierdoi:10.1086/504468
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195396
dc.subjectAstrophysics
dc.titleSurvey for Transiting Extrasolar Planets in Stellar Systems: III. A Limit on the Fraction of Stars with Planets in the Open Cluster NGC 1245
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