The Burrell-Optical-Kepler-Survey (BOKS) I: Survey Description and Initial Results

Abstract

We present the initial results of a 40 night contiguous ground-based campaign of time series photometric observations of a 1.39 sq. deg 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 in detail by the Kepler mission.

51 pages, 26 figures. Accepted for publication in AJ. Full resolution version, as well as variable star tables available at: http://class.ysu.edu/~jjfeldme/publications.html

References in corpus (10)

• The effect of red noise on planetary transit detection
• HAT-P-7b: An Extremely Hot Massive Planet Transiting a Bright Star in the Kepler Field
• TrES-2: The First Transiting Planet in the Kepler Field
• Characterizing the Variability of Stars with Early-Release Kepler Data
• Five Kepler target stars that show multiple transiting exoplanet candidates
• Variable stars across the observational HR diagram
• Predicting the Yields of Photometric Surveys for Transiting Extrasolar Planets
• Improved $u^{\prime }{g}^{\prime }{r}^{\prime }{i}^{\prime }{z}^{\prime }$ to $UBV{R}_C{I}_C$ Transformation Equations for Main Sequence Stars
• Kepler Observations of Three Pre-Launch Exoplanet Candidates: Discovery of Two Eclipsing Binaries and a New Exoplanet
• Observational Window Functions in Planet Transit Surveys

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• A Pan-STARRS1 study of the relationship between wide binarity and planet occurrence in the Kepler field
• RATS-Kepler -- a deep high cadence survey of the Kepler field
• The rms-flux relation in accreting white dwarfs: another nova-like variable and the first dwarf nova
• Spectroscopy of New and Poorly Known Cataclysmic Variables in the Kepler Field
• KIC 10449976: discovery of an extreme-helium subdwarf in the Kepler field
• Light curve solutions of the ultrashort-period $Kepler$ binaries
• BOKS 45906: a CV with an orbital period of 56.6 min in the Kepler field?