THE BURRELL-OPTICAL-KEPLER-SURVEY (BOKS). I. SURVEY DESCRIPTION AND INITIAL RESULTS
- Department of Physics and Astronomy, Youngstown State University, Youngstown, OH 44555 (United States)
- National Optical Astronomy Observatories, Tucson, AZ 85726 (United States)
- National Solar Observatory, Tucson, AZ 85726 (United States)
- NASA Exoplanet Science Institute, California Institute of Technology, Pasadena, CA 91125 (United States)
- Planetary Science Institute, Tucson, AZ 85719 (United States)
- Department of Astronomy, Case Western Reserve University, Cleveland, OH 44106 (United States)
- Department of Physics and Astronomy, Western Kentucky University, Bowling Green, KY 42101 (United States)
We present the initial results of a 40 night contiguous ground-based campaign of time series photometric observations of a 1.39 deg{sup 2} field located within the NASA Kepler Mission field of view. The goal of this pre-launch survey was to search for transiting extrasolar planets and to provide independent variability information of stellar sources. We have gathered a data set containing light curves of 54,687 stars from which we have created a statistical sub-sample of 13,786 stars between 14 < r < 18.5 and have statistically examined each light curve to test for variability. We present a summary of our preliminary photometric findings including the overall level and content of stellar variability in this portion of the Kepler field and give some examples of unusual variable stars found within. We present a preliminary catalog of 2,457 candidate variable stars, of which 776 show signs of periodicity. We also present three potential exoplanet candidates, all of which should be observable by the Kepler mission.
- OSTI ID:
- 21583077
- Journal Information:
- Astronomical Journal (New York, N.Y. Online), Vol. 142, Issue 1; Other Information: DOI: 10.1088/0004-6256/142/1/2; ISSN 1538-3881
- Country of Publication:
- United States
- Language:
- English
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