Detection of period variations in extrasolar transiting planet OGLE-TR-111b

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Detection of period variations in extrasolar transiting planet OGLE-TR-111b

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Detection of period variations in extrasolar transiting planet OGLE-TR-111b

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Título: Detection of period variations in extrasolar transiting planet OGLE-TR-111b
Autor: Díaz, Rodrigo; Rojo, Patricio; Melita, Mario; Hoyer, Sergio; Minniti, Dante; Mauas, Pablo J. D.; Ruiz González, María Teresa
Resumen: 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.
URI: http://www.captura.uchile.cl/handle/2250/6954
Fecha: 2008-07-20
Cita del item: ASTROPHYSICAL JOURNAL LETTERS Volume: 682 Issue: 1 Pages: L49-L52 Published: JUL 20 2008


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