Characterization of the KOI-94 System with Transit Timing Variation Analysis: Implication for the Planet-Planet Eclipse
Characterization of the KOI-94 System with Transit Timing Variation Analysis: Implication for the Planet-Planet Eclipse
复制标题
通过凌日时间变化分析表征 KOI-94 系统：对行星-行星日食的影响
DOI：
10.1088/0004-637x/778/2/185
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
K.Masuda et al.
中科院分区：
文献类型：
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作者：
M. Nagasawa ;K. K. Tanaka;H. Tanaka;T. Nakamoto;H. Miura;and T. Yamamoto;Hiroaki Toh;K.Masuda et al.
KOI-94系统是由开普勒太空望远镜发现的一个密集的多凌行星系统。它被认为是第一个出现罕见事件的系统，称为“行星-行星食（PPE）”，其中两颗行星在双凌阶段部分重叠。在本文中，我们约束的KOI-94系统的参数与过境时间变化（TTVs）的分析。这种约束是独立的径向速度（RV）的分析最近进行的韦斯和同事，并在检查的可靠性的参数估计使用TTV的价值。我们对观测到的KOI-94 c、KOI-94 d和KOI-94 e的TTV进行了数值拟合，得到了它们的质量、偏心率和近星点半径，并得到了最佳拟合参数，包括
The KOI-94 system is a closely packed, multi-transiting planetary system discovered by the Kepler space telescope. It is known as the first system that exhibited a rare event called a" planet–planet eclipse (PPE)," in which two planets partially overlap with each other in their double-transit phase. In this paper, we constrain the parameters of the KOI-94 system with an analysis of the transit timing variations (TTVs). Such constraints are independent of the radial velocity (RV) analysis recently performed by Weiss and coworkers, and valuable in examining the reliability of the parameter estimate using TTVs. We numerically fit the observed TTVs of KOI-94c, KOI-94d, and KOI-94e for their masses, eccentricities, and longitudes of periastrons, and obtain the best-fit parameters including