Detection of Period Variations in Extrasolar Transiting Planet OGLE-TR-111b

Two consecutive transits of planetary companion OGLE-TR-111b were observed in the I band. Combining these observations with data from the literature, we find that the timing of the transits cannot be explained by a constant period and that the observed variations cannot be originated by the presence...

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Detalles Bibliográficos
Autores: Diaz, R.F., Rojo, P., Hoyer, S., Minniti, D., Ruiz, M.T.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2008
País:Chile
Idioma:inglés
OAI Identifier:oai:repositorio.anid.cl:10533/236903
Acceso en línea:https://hdl.handle.net/10533/236903
Access Level:acceso abierto
Descripción
Sumario:Two consecutive transits of planetary companion OGLE-TR-111b were observed in the I band. Combining these observations with data from the literature, we find that the timing of the transits cannot be explained by a constant period and that the observed variations cannot be originated by the presence of a satellite. However, a perturbing planet with the mass of the Earth in an exterior orbit could explain the observations if the orbit of OGLE-TR-111b is eccentric. We also show that the eccentricity needed to explain the observations is not ruled out by the radial velocity data found in the literature.