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GJ 436c? The contribution of transit timings

Published online by Cambridge University Press:  01 May 2008

B.-O. Demory
Affiliation:
Observatoire de l'Université de Genève, Switzerland email: brice-olivier.demory@obs.unige.ch
M. Gillon
Affiliation:
Observatoire de l'Université de Genève, Switzerland email: brice-olivier.demory@obs.unige.ch
C. Waelkens
Affiliation:
Instituut voor Sterrenkunde, KU Leuven, Belgium
D. Queloz
Affiliation:
Observatoire de l'Université de Genève, Switzerland email: brice-olivier.demory@obs.unige.ch
S. Udry
Affiliation:
Observatoire de l'Université de Genève, Switzerland email: brice-olivier.demory@obs.unige.ch
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Abstract

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From recent high-accuracy transit timings measurements, we discard the 5 M planet recently proposed by Ribas et al. (2008). Thanks to a combined radial-velocity and transit timings overview we also define a mass/period domain in which a secondary planet may be found in the system. We also show that timings obtained until now, although not sufficient to remove degeneracies on mass and period, can still restrict the parameter space of the potential secondary planet.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2009

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