The SuperWASP wide-field exoplanetary transit survey: candidates from fields 23 h <RA <03 h

Damian Christian, Don Pollacco, I. Skillen, Rachel Street, Francis Keenan, W.I. Clarkson, A.C. Cameron, S.R. Kane, T.A. Lister, R.G. West, B. Enoch, A. Evans, Alan Fitzsimmons, C.A. Haswell, C. Hellier, S.T. Hodgkin, K. Horne, J. Irwin, A.J. Norton, J. OsborneRobert Ryans, P.J. Wheatley, D.M. Wilson

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)

Abstract

Photometric transit surveys promise to complement the currently known sample of extra-solar planets (ESPs) by providing additional information on the planets and especially their radii. Here, we present ESP candidates from one such survey called, the Wide Angle Search for Planets (WASP) obtained with the SuperWASP wide-field imaging system. Observations were taken with SuperWASP North located in La Palma during the 2004 April to October observing season. The data cover fields between 23 and 03 h in RA at declinations above +12. This amounts to over ~400000 stars with V magnitudes 8-13.5. For the stars brighter than 12.5, we achieve better than 1 per cent photometric precision. Here, we present 41 sources with low-amplitude variability between ~1 and 10 mmag, from which we select 12 with periods between 1.2 and 4.4 d as the most promising ESP candidates. We discuss the properties of these ESP candidates, the expected fraction of transits recovered for our sample and implications for the frequency and detection of hot-Jupiters.
Original languageEnglish
Pages (from-to)1117-1128
Number of pages12
JournalMonthly Notices of the Royal Astronomical Society
Volume372
Issue number3
DOIs
Publication statusPublished - Nov 2006

ASJC Scopus subject areas

  • Space and Planetary Science

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