GJ 436c? The contribution of transit timings
Demory, B.-O ; Gillon, M. ; Waelkens, C. ; Queloz, D. ; Udry, S.
In: Proceedings of the International Astronomical Union, 2008, vol. 4, no. S253, p. 424-427
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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