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

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 نشر من قبل Rodrigo D\\'iaz Mr.
 تاريخ النشر 2008
  مجال البحث فيزياء
والبحث باللغة English
 تأليف Rodrigo F. Diaz




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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.



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