White dwarfs in the WTS: Eclipsing binaries
1 Max-Planck-Institut für extraterrestrische Physik, Giessenbachstrasse, 85748 Garching, Germany
2 Universitäts-Sternwarte München, Scheinerstrasse 1, 81679 Munich, Germany
3 Department of Physics and Astronomy, University of Leicester, University Rd., Leicester LE1 7RH, UK
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We have identified photometric white dwarf candidates in the WFCAM transit survey through a reduced proper motion versus colour approach. Box-fitting with parameters adjusted to detect the unique signature of a white dwarf + planet/brown dwarf transit/eclipse event was performed, as well as looking for variability due to the irradiation of the companions atmosphere by the white dwarf's high UV flux. We have also performed a simple sensitivity analysis in order to assess the ability of the survey to detect companions to white dwarfs via the transit method.
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