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TESS Discovery of a Transiting Super-Earth in the pi Mensae System
- 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
- et al.
Published Web Location
https://doi.org/10.3847/2041-8213/aaef91Abstract
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.
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