Open AccessResults from the Wide Angle Search for Planets Prototype (WASP0) – II. Stellar variability in the Pegasus field
Author(s) -
Kane Stephen R.,
Lister T. A.,
Collier Cameron Andrew,
Horne Keith,
James David,
Pollacco Don L.,
Street Rachel A.,
Tsapras Yiannis
Publication year - 2005
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2005.09286.x
Subject(s) - physics , variable star , astrophysics , stars , planet , astronomy , starspot , exoplanet , field (mathematics) , mathematics , pure mathematics
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 the observations of a field in Pegasus using the Wide Angle Search for Planets Prototype (WASP0) instrument, 73 of which are new discoveries. The variables detected include 16 δ 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 per cent rms is ∼0.4 per cent. These results are compared with other wide field stellar variability surveys, and implications for detecting transits due to extra‐solar planets are discussed.