Results from the Wide Angle Search for Planets Prototype (WASP0) II: Stellar Variability in the Pegasus Field
Kane, Stephen R. · Lister, T. A. · Cameron, Andrew Collier · Horne, Keith · James, David · Pollacco, Don L. · Street, Rachel A. · Tsapras, Yiannis
Original · EN
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.
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