论文标题
伊甸园：敏感性分析和过渡行星检测限，对附近的晚期红矮人
EDEN: Sensitivity Analysis and Transiting Planet Detection Limits for Nearby Late Red Dwarfs
论文作者
论文摘要
小行星是在矮小矮人周围常见的，可以通过高度精确的光度法检测到过境方法。绕附近恒星绕行的行星特别重要，因为它们通常是最适合将来的后续研究的行星。我们介绍了附近的三个M-warfs，称为EIC-1，EIC-2和EIC-3，并使用它们来搜索过渡并设定了行星存在的限制。在大多数夜晚，我们的观察值对地球大小的过渡行星敏感，并且对于相同幅度的微弱的晚期矮人（i = 15 mag），光度法与苔丝相似或更好。我们介绍了我们的光度和传输搜索管道，该管道利用了简单的中值与最小二乘基于过境平方的运输检测结合（Hippke＆Heller 2019）。对于这些目标，在一个和两个地球半径之间的过境行星，我们实现了在0.5和2天之间的平均运输概率，在2天之间，在2天之间，在2天和5天之间，在2天之间和5天之间，并达到5天和10天之间。与视觉搜索相比，这些敏感性是保守的。
Small planets are common around late-M dwarfs and can be detected through highly precise photometry by the transit method. Planets orbiting nearby stars are particularly important as they are often the best-suited for future follow-up studies. We present observations of three nearby M-dwarfs referred to as EIC-1, EIC-2, and EIC-3, and use them to search for transits and set limits on the presence of planets. On most nights our observations are sensitive to Earth-sized transiting planets, and photometric precision is similar to or better than TESS for faint late-M dwarfs of the same magnitude (I=15 mag). We present our photometry and transit search pipeline, which utilizes simple median detrending in combination with transit least squares based transit detection (Hippke & Heller 2019).For these targets, and transiting planets between one and two Earth radii, we achieve an average transit detection probability of 60% between periods of 0.5 and 2 days, 30% between 2 and 5 days,and 10% between 5 and 10 days. These sensitivities are conservative compared to visual searches.
