1. TESS Asteroseismic Analysis of HD 76920: The Giant Star Hosting an Extremely Eccentric Exoplanet
- Author
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Jiang, Chen, primary, Wu, Tao, additional, Feinstein, Adina D., additional, Stassun, Keivan G., additional, Bedding, Timothy R., additional, Veras, Dimitri, additional, Corsaro, Enrico, additional, Buzasi, Derek L., additional, Stello, Dennis, additional, Li, Yaguang, additional, Mathur, Savita, additional, García, Rafael A., additional, Breton, Sylvain N., additional, Lundkvist, Mia S., additional, Mikołajczyk, Przemysław J., additional, Gehan, Charlotte, additional, Campante, Tiago L., additional, Bossini, Diego, additional, Kane, Stephen R., additional, Joel Ong, Jia Mian, additional, Yıldız, Mutlu, additional, Kayhan, Cenk, additional, Çelik Orhan, Zeynep, additional, Örtel, Sibel, additional, Zhang, Xinyi, additional, Cunha, Margarida S., additional, de Moura, Bruno Lustosa, additional, Yu, Jie, additional, Huber, Daniel, additional, Ou, Jian-wen, additional, Wittenmyer, Robert A., additional, Gizon, Laurent, additional, and Chaplin, William J., additional
- Published
- 2023
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!["m\mathrm{sin}\,i=0.0771\]("eq-00001.gif")
m sin i = 0.0771 MJup = 24.5 M[?] to the nearby ( !["d=9.4"/]("eq-00002.gif")
d = 9.4 pc) M2.5 V star GJ 176. The star was observed as part of our M dwarf planet search at the Hobby-Eberly Telescope (HET). The detection is based on 5 years of high-precision differential radial velocity (RV) measurements using the High-Resolution Spectrograph (HRS). The orbital period of the planet is 10.24 days. GJ 176 thus joins the small (but increasing) sample of M dwarfs hosting short-period planets with minimum masses in the Neptune-mass range. Low-mass planets could be relatively common around M dwarfs, and the current detections might represent the tip of a rocky planet population.