How to find a planet from transit variations

被引：2
作者：
Nesvorny, David [1 ]
机构：
[1] Southwest Res Inst, Dept Space Studies, 1050 Walnut St,Suite 300, Boulder, CO 80302 USA
来源：
NEW ASTRONOMY REVIEWS | 2019年 / 84卷
关键词：
D O I：
10.1016/j.newar.2019.03.001
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Here we describe the story behind the discovery of Kepler-46, which was the first exoplanetary system detected and characterized from a method known as the transit timing variations (TTVs). The TTV method relies on the gravitational interaction between planets orbiting the same star. If transits of at least one of the planets are detected, precise measurements of its transit times can be used, at least in principle, to detect and characterize other non-transiting planets in the system. Kepler-46 was the first case for which this method was shown to work in practice. Other detections and characterizations followed (e.g., Kepler-88). The TTV method plays an important role in addressing the incompleteness of planetary systems detected from transits.
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页数：5
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