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arXiv 1105.5599astro-ph.EP
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HAT-P-13 b的长期Transit定时监测和精细光变曲线参数

Long-Term Transit Timing Monitoring and Refined Light Curve Parameters of HAT-P-13b

Benjamin J. Fulton, Avi Shporer, Joshua N. Winn, Matthew J. Holman, András Pál, J. Zachary Gazak

摘要:

我们提出了10个新的过境热木星HAT-P-13 b的光变曲线,在两个观测季节获得的三个不同的望远镜。当结合12个先前发表的光变曲线时,我们有一个由22个凌日光变曲线组成的样本,跨越了四个观测季节的1,041天。我们使用这个样本来检查最近观察到的大幅度凌日定时变化(Pál et al. 2011),并给出精确的系统参数。我们发现,过境时间是一致的线性星历,除了一个单一的过境时间,从UT 2009年11月5日,其中测得的中期过境时间显着偏离我们的线性星历。这种偏离的性质尚不清楚,其余数据也没有显示出任何重大的过境时间变化。

英文摘要:

We present 10 new transit light curves of the transiting hot Jupiter HAT-P-13b, obtained during two observational seasons by three different telescopes. When combined with 12 previously published light curves, we have a sample consisting of 22 transit light curves, spanning 1,041 days across four observational seasons. We use this sample to examine the recently observed large-amplitude transit timing variations (Pál et al. 2011), and give refined system parameters. We find that the transit times are consistent with a linear ephemeris, with the exception of a single transit time, from UT 2009 Nov 5, for which the measured mid transit time significantly deviates from our linear ephemeris. The nature of this deviation is not clear, and the rest of the data does not show any significant transit timing variation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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