[en] From recent high-accuracy transit timings measurements, we discard the 5 M_earth 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.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Demory, B-O; Observatoire de l'Université de Genève, Switzerland
Gillon, Michaël ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image
Waelkens, C.; Instituut voor Sterrenkunde, KU Leuven, Belgium
Queloz, D.; Observatoire de l'Université de Genève, Switzerland
Udry, S.; Observatoire de l'Université de Genève, Switzerland
Language :
English
Title :
GJ 436c? The contribution of transit timings
Publication date :
01 February 2009
Event name :
IAU Symposium 253: Transiting Planets
Event organizer :
IAU
Event place :
Boston, United States
Event date :
19-23 May 2008
Audience :
International
Journal title :
Proceedings of the International Astronomical Union
ISSN :
1743-9213
eISSN :
1743-9221
Publisher :
Cambridge University Press, Cambridge, United Kingdom
