Recent wide-field photometric surveys which target a specific field for long durations are ideal for studying both long and short period stellar variability. Here we report on 75 variable stars detected during observations of a field in Pegasus using the WASP0 instrument, 73 of which are new discoveries. The variables detected include 16 delta Scuti stars, 34 eclipsing binaries, 3 BY Draconis stars, and 4 RR Lyraes. We estimate that the fraction of stars in the field brighter than V ~ 13.5 exhibiting variable behaviour with an amplitude greater than 0.6% rms is ~ 0.4%. These results are compared with other wide-field stellar variability surveys and implications for detecting transits due to extra-solar planets are discussed.
@article{arxiv.astro-ph/0509366,
title = {Results from the Wide Angle Search for Planets Prototype (WASP0) II: Stellar Variability in the Pegasus Field},
author = {Stephen R. Kane and T. A. Lister and Andrew Collier Cameron and Keith Horne and David James and Don L. Pollacco and Rachel A. Street and Yiannis Tsapras},
journal= {arXiv preprint arXiv:astro-ph/0509366},
year = {2007}
}