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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, P. R.; 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, G. Á.; Sato, Bun'ei; Ida, Shigeru; Kaltenegger, Lisa; Palle, Enric; Sasselov, Dimitar; Butler, R. P.; Lissauer, Jack; Ge, Jian; Rinehart, S. A.
Astrophysical journal. Letters, 12/2018, Letnik: 868, Številka: 2Journal Article
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 yr 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 High-Accuracy Radial-velocity Planet Searcher and Anglo-Australian Telescope/University College London Echelle Spectrograph 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.
