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arXiv 1012.2234astro-ph.EP
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开普勒Space Telescope视场中的M星巡天

A Survey of M Stars in the Field of View of Kepler Space Telescope

Mahmoudreza Oshagh, Nader Haghighipour, Nuno C. Santos

摘要:

M矮星构成了太阳附近70%以上的恒星。它们比类太阳恒星更冷,更小,并且具有较小的质量盘,这表明这些恒星周围的行星更有可能是海王星大小或更小。M恒星周围行星的凌日深度和凌日时间都很大,与开普勒的时间分辨率很好地匹配。因此,M星在径向速度和凌日光度测量中都对寻找行星特别感兴趣。我们最近开始了一个项目,在开普勒空间望远镜公开提供的数据中寻找可能的行星托管M星。我们使用了四个判据,即星等、自行、H-Ks和J-H色,在Q 0和Q1数据集中搜索了M星。我们已经能够找到108颗M星,其中54颗以前没有在开普勒的目标中被发现。我们讨论了我们的选择过程的细节,并提出了结果。

英文摘要:

M dwarfs constitute more than 70% of the stars in the solar neighborhood. They are cooler and smaller than Sun-like stars and have less-massive disks which suggests that planets around these stars are more likely to be Neptune-size or smaller. The transit depths and transit times of planets around M stars are large and well-matched to the Kepler temporal resolution. As a result, M stars have been of particular interest for searching for planets in both radial velocity and transit photometry surveys. We have recently started a project on searching for possible planet-hosting M stars in the publicly available data from Kepler space telescope. We have used four criteria, namely, the magnitude, proper motion, H-Ks and J-H colors, and searched for M stars in Q0 and Q1 data sets. We have been able to find 108 M stars among which 54 had not been previously identified among Kepler's targets. We discuss the details of our selection process and present the results.

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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