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Transits against Fainter Stars: The Power of Image Deconvolution

Published online by Cambridge University Press:  01 May 2008

Penny D. Sackett ,
Michaël Gillon ,
Daniel D. R. Bayliss ,
David T. F. Weldrake  and
Brandon Tingley
Penny D. Sackett
Affiliation:
Research School of Astronomy and Astrophysics, Australian National University, Mount Stromlo, Australia email: [email protected]
Michaël Gillon
Affiliation:
Observatoire de l'Université de Genève, Switzerland
Daniel D. R. Bayliss
Affiliation:
Research School of Astronomy and Astrophysics, Australian National University, Mount Stromlo, Australia email: [email protected]
David T. F. Weldrake
Affiliation:
Harvard-Smithsonian Center for Astrophysics, USA
Brandon Tingley
Affiliation:
Instituto de Astrofisica de Canarias, Spain
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Abstract

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Compared to bright star searches, surveys for transiting planets against fainter (V = 12–18) stars have the advantage of much higher sky densities of dwarf star primaries, which afford easier detection of small transiting bodies. Furthermore, deep searches are capable of probing a wider range of stellar environments. On the other hand, for a given spatial resolution and transit depth, deep searches are more prone to confusion from blended eclipsing binaries. We present a powerful mitigation strategy for the blending problem that includes the use of image deconvolution and high-resolution imaging. The techniques are illustrated with Lupus-TR-3 and very recent IR imaging with PANIC on Magellan. The results are likely to have implications for the CoRoT and KEPLER missions designed to detect transiting planets of terrestrial size.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S253: Transiting Planets , May 2008 , pp. 55 - 61
Copyright
Copyright © International Astronomical Union 2009

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