A dearth of planetary transits in the direction of NGC 6940

Author Info

Ben Hood, University of St. Andrews
Andrew Collier Cameron, University of St. Andrews
Stephen R. Kane, University of St. Andrews
D. M. Bramich, University of St. Andrews
Keith Horne, University of St. Andrews
Rachel A. Street, Queen's University Belfast
I. A. Bond, University of Edinburgh
A. J. Penny, SETI Institute
Y. Tsapras, Queen Mary University of London
A. Quirrenbach, Queen Mary University of London
N. Safizadeh, University of California - San Diego
D. Mitchell, University of California - San DiegoFollow
J. Cooke, University of California - San Diego

Recommended Citation

Published in Monthly Notices of the Royal Astronomical Society, Volume 360, Issue 2, June 1, 2005, pages 791-800.

NOTE: At the time of publication, the author David Mitchell was not yet affiliated with Cal Poly.

The definitive version is available at https://doi.org/10.1111/j.1365-2966.2005.09104.x.

Abstract

We present results of our survey for planetary transits in the field of NGC 6940. We think nearly all of our observed stars are field stars. We have obtained high precision (∼3–10 mmag at the bright end) photometric observations of ∼50 000 stars spanning 18 nights in an attempt to identify low-amplitude and short-period transit events. We have used a matched filter analysis to identify 14 stars that show multiple events and four stars that show single transits. Of these 18 candidates, we have identified two that should be further researched. However, none of the candidates is a convincing hot Jupiter.

Disciplines

Physics

Copyright

2005 Royal Astronomical Society.

Publisher statement

Published by Blackwell Publishing.