We report the results of the first transit timing variation (TTV) analysis of the very hot Jupiter OGLE-TR-132b, using ten transits collected over a seven-year period. Our analysis combines three previously published transit light curves with seven new transits, which were observed between February 2008 and May 2009 with the new MagIC-e2V instrument on the Magellan Telescopes in Chile. We provide a revised planetary radius of R_p = 1.23+/-0.07 R_J, which is slightly larger than, but consistent within the errors, of the 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_Earth 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.
Transit Timing Observations from Kepler: VI. Transit Timing Variation Candidates in the First Seventeen Months from Polynomial Models
凌日时间变化为确认和描述凌日行星以及探测非凌日行星提供了一个强大的工具。我们报告了基于开普勒观测前16个月测量的凌日时间对1481颗候选行星（Borucki et al. 2011; Batalha et al. 2012）的最新TTV分析结果。我们根据长期趋势（2.8%的合适数据集）提出了39个强有力的TTV候选者。我们提出了另外136个较弱的TTV候选人（9.8%的合适的数据集）的基础上过度分散的TTV测量的线性星历。我们预计，这些行星候选人中的几个可以得到证实，也许特征与更详细的TTV分析使用公开的开普勒观测。对于许多其他人来说，开普勒已经观察到了一个长期的TTV趋势，但是需要一个扩展的开普勒任务来通过TTV来表征系统。我们发现，行星候选人，显示TTV的出现率显着增加（~68%）的行星候选人过境恒星与多个过境行星候选人相比，行星候选人过境恒星与一个过境行星候选人。
The TESS-Keck Survey XVII: Precise Mass Measurements in a Young, High Multiplicity Transiting Planet System using Radial Velocities and Transit Timing Variations
