Initial data release of the Kepler-INT Survey
S. Greiss, D. Steeghs, B. T. G\"ansicke, E. L. Mart\'in, P. J. Groot,, M. J. Irwin, E. Gonz\'alez-Solares, R. Greimel, C. Knigge, R. H. {\O}stensen,, K. Verbeek, J. E. Drew, J. Drake, P. G. Jonker, V. Ripepi, S. Scaringi, J., Southworth, M. Still, N. J. Wright, H. Farnhill

TL;DR
The paper presents the first data release of the Kepler-INT Survey, providing deep optical photometry for the Kepler field to aid target selection and complement Kepler's time series data.
Contribution
It introduces a new deep optical survey of the Kepler field, using the Isaac Newton Telescope, with calibrated photometry aligned to the Kepler Input Catalog.
Findings
Coverage of 50 deg2 in the Kepler field with quality-controlled data.
Catalogue of approximately 6 million sources available for download.
Achieved a 10-sigma detection limit around 20th magnitude.
Abstract
This paper describes the first data release of the Kepler-INT Survey (KIS), that covers a 116 deg2 region of the Cygnus and Lyra constellations. The Kepler field is the target of the most intensive search for transiting planets to date. Despite the fact that the Kepler mission provides superior time series photometry, with an enormous impact on all areas of stellar variability, its field lacks optical photometry complete to the confusion limit of the Kepler instrument necessary for selecting various classes of targets. For this reason, we follow the observing strategy and data reduction method used in the IPHAS and UVEX galactic plane surveys in order to produce a deep optical survey of the Kepler field. This initial release concerns data taken between May and August 2011, using the Isaac Newton Telescope on the island of La Palma. Four broadband filters were used, U, g, r, i, as well…
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Taxonomy
TopicsAstronomy and Astrophysical Research · Astronomical Observations and Instrumentation · Stellar, planetary, and galactic studies
