IAFE 05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
artículos
Título:
Detection of period variations in extrasolar transiting planetOGLE-TR-111b.
Autor/es:
RODRIGO F. DÍAZ; PATRICIO ROJO; MARIO MELITA; SERGIO HOYER; DANTE MINNITI; PABLO J. D. MAUAS; MARÍA TERESA RUÍZ
Revista:
ASTRONOMY AND ASTROPHYSICS
Editorial:
The University of Chicago Press
Referencias:
Año: 2008 vol. 682 p. 49 - 52
ISSN:
0004-6361
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.
