Detection of period variations in extrasolar transiting planet OGLE-TR-111b
Astrophysics
2009-11-13 v3
Abstract
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.
Keywords
Cite
@article{arxiv.0806.1229,
title = {Detection of period variations in extrasolar transiting planet OGLE-TR-111b},
author = {Rodrigo F. Díaz and Patricio Rojo and Mario Melita and Sergio Hoyer and Dante Minniti and Pablo J. D. Mauas and María Teresa Ruíz},
journal= {arXiv preprint arXiv:0806.1229},
year = {2009}
}
Comments
Corrected central times, minor changes in the analysis of the data, and text. Accepted for publication in ApJ Letters