A UBV Photometric Survey of the Kepler Field
arXiv:1202.5565 · doi:10.1086/665529
Abstract
We present the motivations for and methods we used to create a new ground-based photometric survey of the field targeted by the NASA Kepler Mission. The survey contains magnitudes for 4414002 sources in one or more of the UBV filters, including 1862902 sources detected in all three filters. The typical completeness limit is U~18.7, B~19.3, and V~19.1 magnitudes, but varies by location. The area covered is 191 square degrees and includes the areas on and between the 42 Kepler CCDs as well as additional areas around the perimeter of the Kepler field. The major significance of this survey is our addition of U to the optical bandpass coverage available in the Kepler Input Catalog, which was primarily limited to the redder SDSS griz and D51 filters. The U coverage reveals a sample of the hottest sources in the field, many of which are not currently targeted by Kepler, but may be objects of astrophysical interest.
19 pages, 6 figures, in press at PASP A slightly-revised version of previous upload. A few changes to the text now more closely reflect the published manuscript. URLs for downloading data are included
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