학술논문
EDEN: Sensitivity Analysis and Transiting Planet Detection Limits for Nearby Late Red Dwarfs
Document Type
Working Paper
Author
Gibbs, Aidan; Bixel, Alex; Rackham, Benjamin; Apai, Daniel; Schlecker, Martin; Espinoza, Nestor; Mancini, Luigi; Chen, Wen-Ping; Henning, Thomas; Gabor, Paul; Boyle, Richard; Chavez, Jose Perez; Mousseau, Allie; Dietrich, Jeremy; Socia, Quentin Jay; Ip, Wing; Ngeow, Chow-Choong; Tsai, Anli; Bhandare, Asmita; Marian, Victor; Baehr, Hans; Brown, Samantha; Haberle, Maximilian; Keppler, Miriam; Molaverdikhani, Karan; Sarkis, Paula
Source
Subject
Language
Abstract
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.
Comment: Accepted to AJ
Comment: Accepted to AJ