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Period variations in extrasolar transiting planet OGLE-TR-111b

Published online by Cambridge University Press:  01 May 2008

Rodrigo F. Díaz ,
Patricio Rojo ,
Mario Melita ,
Sergio Hoyer ,
Dante Minniti ,
Pablo J. D. Mauas  and
María Teresa Ruíz
Rodrigo F. Díaz
Affiliation:
Instituto de Astronomía y Física del Espacio (CONICET- UBA)Buenos Aires, Argentina email: rodrigo@iafe.uba.ar
Patricio Rojo
Affiliation:
Department of Astronomy, Universidad de Chile, Santiago, Chile
Mario Melita
Affiliation:
Instituto de Astronomía y Física del Espacio (CONICET- UBA)Buenos Aires, Argentina email: rodrigo@iafe.uba.ar
Sergio Hoyer
Affiliation:
Department of Astronomy, Universidad de Chile, Santiago, Chile
Dante Minniti
Affiliation:
Department of Astronomy, Pontificia Universidad Católica, Casilla 306, Santiago 22, Chile Specola Vaticana, V-00120 Citta del Vaticano, Italy
Pablo J. D. Mauas
Affiliation:
Instituto de Astronomía y Física del Espacio (CONICET- UBA)Buenos Aires, Argentina email: rodrigo@iafe.uba.ar
María Teresa Ruíz
Affiliation:
Department of Astronomy, Universidad de Chile, Santiago, Chile
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Abstract

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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.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S253: Transiting Planets , May 2008 , pp. 450 - 453
Copyright
Copyright © International Astronomical Union 2009

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