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Author Astudillo-Defru, N.; Cloutier, R.; Wang, S.X.; Teske, J.; Brahm, R.; Hellier, C.; Ricker, G.; Vanderspek, R.; Latham, D.; Seager, S.; Winn, J.N.; Jenkins, J.M.; Collins, K.A.; Stassun, K.G.; Ziegler, C.; Almenara, J.M.; Anderson, D.R.; Artigau, E.; Bonfils, X.; Bouchy, F.; Briceno, C.; Butler, R.P.; Charbonneau, D.; Conti, D.M.; Crane, J.; Crossfield, I.J.M.; Davies, M.; Delfosse, X.; Diaz, R.F.; Doyon, R.; Dragomir, D.; Eastman, J.D.; Espinoza, N.; Essack, Z.; Feng, F.; Figueira, P.; Forveille, T.; Gan, T.; Glidden, A.; Guerrero, N.; Hart, R.; Henning, T.; Horch, E.P.; Isopi, G.; Jenkins, J.S.; Jordan, A.; Kielkopf, J.F.; Law, N.; Lovis, C.; Mallia, F.; Mann, A.W.; de Medeiros, J.R.; Melo, C.; Mennickent, R.E.; Mignon, L.; Murgas, F.; Nusdeo, D.A.; Pepe, F.; Relles, H.M.; Rose, M.; Santos, N.C.; Segransan, D.; Shectman, S.; Shporer, A.; Smith, J.C.; Torres, P.; Udry, S.; Villasenor, J.; Winters, J.G.; Zhou, G.
Title A hot terrestrial planet orbiting the bright M dwarf L 168-9 unveiled by TESS Type
Year 2020 Publication Astronomy & Astrophysics Abbreviated Journal Astron. Astrophys.
Volume 636 Issue Pages 13 pp
Keywords stars: individual L 168-9; planetary systems; stars: late-type; techniques:photometric; techniques: radial velocities
Abstract We report the detection of a transiting super-Earth-sized planet (R = 1.39 +/- 0.09 R-circle plus) in a 1.4-day orbit around L 168-9 (TOI-134), a bright M1V dwarf (V = 11, K = 7.1) located at 25.15 +/- 0.02 pc. The host star was observed in the first sector of the Transiting Exoplanet Survey Satellite (TESS) mission. For confirmation and planet mass measurement purposes, this was followed up with ground-based photometry, seeing-limited and high-resolution imaging, and precise radial velocity (PRV) observations using the HARPS and Magellan/PFS spectrographs. By combining the TESS data and PRV observations, we find the mass of L 168-9 b to be 4.60 +/- 0.56 M-circle plus and thus the bulk density to be 1.74(-0.33)(+0.44) times higher than that of the Earth. The orbital eccentricity is smaller than 0.21 (95% confidence). This planet is a level one candidate for the TESS mission's scientific objective of measuring the masses of 50 small planets, and it is one of the most observationally accessible terrestrial planets for future atmospheric characterization.
Address [Astudillo-Defru, N.] Univ Catolica Santisima Concepcion, Dept Matemat & Fis Aplicadas, Alonso de Rivera 2850, Concepcion, Chile, Email: nastudillo@ucsc.cl
Corporate Author Thesis
Publisher Edp Sciences S A Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1432-0746 ISBN Medium
Area Expedition Conference
Notes WOS:000528572600001 Approved
Call Number UAI @ eduardo.moreno @ Serial 1144
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