학술논문
TESS Discovery of a Transiting Super-Earth in the pi Mensae System
Document Type
article
Author
Huang, Chelsea X; Burt, Jennifer; Vanderburg, Andrew; Günther, Maximilian N; Shporer, Avi; Dittmann, Jason A; Winn, Joshua N; Wittenmyer, Rob; Sha, Lizhou; Kane, Stephen R; Ricker, George R; Vanderspek, Roland K; Latham, David W; Seager, Sara; Jenkins, Jon M; Caldwell, Douglas A; Collins, Karen A; Guerrero, Natalia; Smith, Jeffrey C; Quinn, Samuel N; Udry, Stéphane; Pepe, Francesco; Bouchy, François; Ségransan, Damien; Lovis, Christophe; Ehrenreich, David; Marmier, Maxime; Mayor, Michel; Wohler, Bill; Haworth, Kari; Morgan, Edward H; Fausnaugh, Michael; Ciardi, David R; Christiansen, Jessie; Charbonneau, David; Dragomir, Diana; Deming, Drake; Glidden, Ana; Levine, Alan M; McCullough, PR; Yu, Liang; Narita, Norio; Nguyen, Tam; Morton, Tim; Pepper, Joshua; Pál, András; Rodriguez, Joseph E; Stassun, Keivan G; Torres, Guillermo; Sozzetti, Alessandro; Doty, John P; Christensen-Dalsgaard, Jørgen; Laughlin, Gregory; Clampin, Mark; Bean, Jacob L; Buchhave, Lars A; Bakos, GÁ; Sato, Bun’ei; Ida, Shigeru; Kaltenegger, Lisa; Palle, Enric; Sasselov, Dimitar; Butler, RP; Lissauer, Jack; Ge, Jian; Rinehart, SA
Source
The Astrophysical Journal Letters. 868(2)
Subject
Language
Abstract
We report the detection of a transiting planet around π Men (HD 39091), using data from the Transiting Exoplanet Survey Satellite (TESS). The solar-type host star is unusually bright (V = 5.7) and was already known to host a Jovian planet on a highly eccentric, 5.7-year orbit. The newly discovered planet has a size of 2.04 ± 0.05 R⊕ and an orbital period of 6.27 days. Radial-velocity data from the HARPS and AAT/UCLES archives also displays a 6.27-day periodicity, confirming the existence of the planet and leading to a mass determination of 4.82±0.85 M⊕. The star's proximity and brightness will facilitate further investigations, such as atmospheric spectroscopy, asteroseismology, the Rossiter-McLaughlin effect, astrometry, and direct imaging.