EPJ Web of Conferences (Apr 2013)

Hot Jupiters around M dwarfs

  • Murgas F.,
  • Martín E.,
  • Koppenhoefer J.,
  • Cruz P.,
  • Cappetta M.,
  • Birkby J.,
  • Barrado D.,
  • Pinfield D.,
  • Sipőcz B.,
  • Hodgkin S.,
  • Kovács Gábor,
  • Nefs B.,
  • Saglia R.,
  • Zendejas J.

DOI
https://doi.org/10.1051/epjconf/20134701002
Journal volume & issue
Vol. 47
p. 01002

Abstract

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The WFCAM Transit Survey (WTS) is a near-infrared transit survey running on the United Kingdom Infrared Telescope (UKIRT). We conduct Monte Carlo transit injection and detection simulations for short period (<10 day) Jupiter-sized planets to characterize the sensitivity of the survey. We investigate the recovery rate as a function of period and magnitude in 2 hypothetical star-planet cases: M0–2 + hot Jupiter, M2–4 + hot Jupiter. We find that the WTS lightcurves are very sensitive to the presence of Jupiter-sized short-period transiting planets around M dwarfs. The non-detection of a hot-Jupiter around an M dwarf by the WFCAM Transit Survey allows us to place a firm upper limit of 1.9 per cent (at 95 per cent confidence) on the planet occurrence rate.