THE XO PLANETARY SURVEY PROJECT: ASTROPHYSICAL FALSE POSITIVES
THE XO PLANETARY SURVEY PROJECT: ASTROPHYSICAL FALSE POSITIVES
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XO 行星调查项目：天体物理学误报
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
K. Janes
中科院分区：
文献类型：
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作者：
R. Poleski;P. McCullough;J. Valenti;C. Burke;P. Machálek;K. Janes
行星凌日的观测者发现许多天体物理学的误报是一种副产品。文献中分析了四种主要的类型：掠食双星（EB）星星、EB星星与小半径伴星星星、一颗或多颗恒星与不相关的EB星星的混合以及物理上的三颗星星系统。我们列出了69个天体物理误报，已被确定为正在进行的XO调查过境行星的候选人。这个列表可能是有用的，以避免多余的观察和表征这些特定的候选人已经独立地确定了其他宽场搜索过境行星。该列表可能对那些模拟XO巡天和类似巡天的产量的人有用。对一些列出的恒星的后续观测可能会改善质量-半径关系，特别是对于低质量恒星。从候选的食，我们报告了三个新的光谱双线双星，并给出了15个单线光谱双星的质量函数估计。
Searches for planetary transits find many astrophysical false positives as a by-product. There are four main types analyzed in the literature: a grazing-incidence eclipsing binary (EB) star, an EB star with a small radius companion star, a blend of one or more stars with an unrelated EB star, and a physical triple star system. We present a list of 69 astrophysical false positives that had been identified as candidates of transiting planets of the on-going XO survey. This list may be useful in order to avoid redundant observation and characterization of these particular candidates that have been independently identified by other wide-field searches for transiting planets. The list may be useful for those modeling the yield of the XO survey and surveys similar to it. Subsequent observations of some of the listed stars may improve mass–radius relations, especially for low-mass stars. From the candidates exhibiting eclipses, we report three new spectroscopic double-line binaries and give mass function estimations for 15 single-line spectroscopic binaries.