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

Borucki, William J. and Agol, Eric and Fressin, Francois and Kaltenegger, Lisa and Rowe, Jason and Isaacson, Howard and Fischer, Debra and Batalha, Natalie and Lissauer, Jack J. and Marcy, Geoffrey W. and Fabrycky, Daniel and Desert, Jean Michel and Bryson, Stephen T. and Barclay, Thomas and Bastien, Fabienne and Boss, Alan and Brugamyer, Erik and Buchhave, Lars A. and Burke, Chris and Caldwell, Douglas A. and Carter, Josh and Charbonneau, David and Crepp, Justin R. and Christensen-Dalsgaard, Jorgen and Christiansen, Jessie L. and Ciardi, David and Cochran, William D. and DeVore, Edna and Doyle, Laurance and Dupree, Andrea K. and Endl, Michael and Everett, Mark E. and Ford, Eric B. and Fortney, Jonathan and Gautier, Thomas N. and Geary, John C. and Gould, Alan and Haas, Michael and Henze, Christopher and Howard, Andrew W. and Howell, Steve B. and Huber, Daniel and Jenkins, Jon M. and Kjeldsen, Hans and Kolbl, Rea and Kolodziejczak, Jeffery and Latham, David W. and Lee, Brian L. and Lopez, Eric and Mullally, Fergal and Orosz, Jerome A. and Prsa, Andrej and Quintana, Elisa V. and Sanchis-Ojeda, Roberto and Sasselov, Dimitar and Seader, Shawn and Shporer, Avi and Steffen, Jason H. and Still, Martin and Tenenbaum, Peter and Thompson, Susan E. and Torres, Guillermo and Twicken, Joseph D. and Welsh, William F. and Winn, Joshua N. (2013) Kepler-62: A five-planet system with planets of 1.4 and 1.6 Earth radii in the habitable zone. Science, 340 (6132). pp. 587-590. ISSN 0036-8075

Abstract

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 (R⊕), 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 and -62f, are super-Earth-size (1.25 R ⊕ < planet radius ≤ 2.0 R⊕) planets in the habitable zone of their host star, respectively receiving 1.2 ± 0.2 times 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 billion years 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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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 14 Jun 2017 22:28
Last Modified: 14 Jun 2017 22:28
Uncontrolled Keywords: Environmental Health and Pollution Control; Other planets;
Fields of Research : 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020110 Stellar Astronomy and Planetary Systems
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Identification Number or DOI: 10.1126/science.1234702
URI: http://eprints.usq.edu.au/id/eprint/32204

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