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A Search for Exotrojans in Transiting Exoplanetary systems

Published online by Cambridge University Press:  01 May 2008

N. Madhusudhan  and
Joshua N. Winn
N. Madhusudhan
Affiliation:
Department of Physics and Kavli Institute for Astrophysics and Space Research, MIT, Cambridge, MA 02139; nmadhu@mit.edu
Joshua N. Winn
Affiliation:
Department of Physics and Kavli Institute for Astrophysics and Space Research, MIT, Cambridge, MA 02139; nmadhu@mit.edu
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Abstract

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We present a search for Trojan companions to 25 transiting exoplanets. We use the technique of Ford & Gaudi, in which a difference is sought between the observed transit time and the transit time that is calculated by fitting a two-body Keplerian orbit to the radial-velocity data. This technique is sensitive to the imbalance of mass at the L4/L5 points of the planet-star orbit. No companions were detected. The median 2σ upper limit is 60 M⊕, and the most constraining limit is 2.5 M⊕ for the case of GJ 436.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S253: Transiting Planets , May 2008 , pp. 496 - 498
Copyright
Copyright © International Astronomical Union 2009

References

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