Results from the wide angle search for planets prototype (WASP0) - II. Stellar variability in the Pegasus field

S R Kane, T A Lister, A C Cameron, K Horne, D James, D L Pollacco, R A Street, Y Tsapras

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11 Citations (Scopus)

Abstract

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 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 similar to 13.5 exhibiting variable behaviour with an amplitude greater than 0.6 per cent rms is similar to 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.

Original languageEnglish
Pages (from-to)117-126
Number of pages10
JournalMonthly Notices of the Royal Astronomical Society
Volume362
Issue number1
DOIs
Publication statusPublished - 1 Sept 2005

Keywords

  • methods : binaries : eclipsing
  • stars : variables : other
  • IMAGE SUBTRACTION PHOTOMETRY
  • VARIABLE-STARS
  • SYSTEM
  • DATABASE
  • CATALOG

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