Kepler-62: A five-planet system with planets of 1.4 and 1.6 Earth radii in the Habitable Zone

W. J. Borucki (1) , E. Agol (12) , F. Fressin (10) , L. Kaltenegger (10 , 39) , J. Rowe (6) , H. Isaacson (2) , D. Fischer (19)

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N. Batalha (1) J. J. Lissauer (1) G. W. Marcy (2) D. Fabrycky (17 42) J.-M. D\'esert (10) S. T. Bryson (1) T. Barclay (35) F. Bastien (43) A. Boss (4) E. Brugamyer (8) L. A. Buchhave (40 41) Chris Burke (6) D. A. Caldwell (6) J. Carter (18) D. Charbonneau (10) J. R. Crepp (20 38) J. Christensen-Dalsgaard (7) J. L. Christiansen (6) D. Ciardi (22) W. D. Cochran (8) E. DeVore (6) L. Doyle (6) A. K. Dupree (10) M. Endl (8) M. E. Everett (14) E. B. Ford (16) J. Fortney (17) T. N. Gautier III (11) J. C. Geary (10) A. Gould (13) M. Haas (1) C. Henze (1) A. W. Howard (24) S. B. Howell (1) D. Huber (32) J. M. Jenkins (6) H. Kjeldsen (7) R. Kolbl (2) J. Kolodziejczak (25) D. W. Latham (10) B. L. Lee (12) E. Lopez (17) F. Mullally (6) J. A. Orosz (30) A. Prsa (26) E. V. Quintana (6) R. Sanchez-Ojeda (18) D. Sasselov (10) S. Seader (6) A. Shporer (20 36) J. H. Steffen (9) M. Still (35) P. Tenenbaum (6) S. E. Thompson (6) G. Torres (10) J. D. Twicken (6) W. F. Welsh (30) J. N. Winn (18) ((1) NASA Ames Research Center (2) University of California Berkeley (3) San Jose State University (4) Carnegie Institution of Washington (6) SETI Institute (7) Aarhus University (8) McDonald Observatory (9) Northwestern University (10) Harvard-Smithsonian Center for Astrophysics (11) Jet Propulsion Laboratory (12) University of Washington (13) Lawrence Hall of Science (14) NOAO (15) Steward Observatory (16) Univ. of Florida (17) Univ. of Calif. Santa Cruz (18) MIT (19) Yale University (20) California Institute of Technology (21) Orbital Sciences Corp. (22) Exoplanet Science Institute/Caltech (23) University Affiliated Research Center University of California Santa Cruz CA (24) University of Hawaii (25) MSFC (26) Villanova University (30) San Diego State University (34) University of Amsterdam (35) Bay Area Environmental Research Institute (36) Las Cumbres Observatory Global Telescope (37) Solar System Exploration Division NASA Goddard Space Flight Center (38) University of Notre Dame (39) Max Planck Institute of Astronomy (40) Niels Bohr Institute University of Copenhagen (41) Natural History Museum of Denmark (42) University of Chicago (43) Vanderbilt University)

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classification 🌌 astro-ph.EP

keywords planetsearthhabitablekepler-62eradiiradiussolidstar

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We present the detection of five planets -- Kepler-62b, c, d, e, and f -- of size 1.31, 0.54, 1.95, 1.61 and 1.41 Earth radii, orbiting a K2V star at periods of 5.7, 12.4, 18.2, 122.4 and 267.3 days, respectively. The outermost planets (Kepler-62e & -62f) are super-Earth-size (1.25 < planet radius/earth radius < 2.0) planets in the habitable zone (HZ) of their host star, receiving 1.2 +- 0.2 and 0.41 +- 0.05 times the solar flux at Earth's orbit. Theoretical models of Kepler-62e and -62f for a stellar age of ~7 Gyr suggest that both planets could be solid: either with a rocky composition or composed of mostly solid water in their bulk.

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Kepler-62: A five-planet system with planets of 1.4 and 1.6 Earth radii in the Habitable Zone

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