Transit Timing Variation Analysis of Ogle-Tr-132b with Seven New Transits
Author(s)Adams, Elisabeth Rose; Lopez-Morales, Mercedes; Elliot, James L.; Seager, Sara; Osip, David J.
MetadataShow full item record
We report the results of the first transit timing variation analysis of the very hot Jupiter OGLE-TR-132b, using 10 transits collected over a seven-year period. Our analysis combines three previously published transit light curves with seven new transits, which were observed between 2008 February and 2009 May with the new MagIC-e2V instrument on the Magellan Telescopes in Chile. We provide a revised planetary radius of R[subscript p] = 1.23 ± 0.07R[subscript J] , which is slightly larger, but consistent within the errors, than that given by previously published results. Analysis of the planet-to-star radius ratio, orbital separation, inclination, and transit duration reveals no apparent variation in any of those parameters during the time span observed. We also find no sign of transit timing variations larger than –108 ± 49 s, with most residuals very close to zero. This allows us to place an upper limit of 5-10 M [subscript ⊕] for a coplanar, low-eccentricity perturber in either the 2:1 or 3:2 mean-motion resonance with OGLE-TR-132b. We similarly find that the data are entirely consistent with a constant orbital period and there is no evidence for orbital decay within the limits of precision of our data.
December 15, 2010
DepartmentMassachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences; Massachusetts Institute of Technology. Department of Physics
Adams, E. R. et al. “Transit Timing Variation Analysis of Ogle-Tr-132b with Seven New Transits.” The Astrophysical Journal 728.2 (2011): 125.
Author's final manuscript