Borucki, William J.; Agol, Eric; Fressin, Francois; Kaltenegger, Lisa; Rowe, Jason; Isaacson, Howard; Fischer, Debra; Batalha, Natalie; Lissauer, Jack J.; Marcy, Geoffrey W.; Fabrycky, Daniel; Desert, Jean-Michel; Bryson, Stephen T.; Barclay, Thomas; Bastien, Fabienne; Boss, Alan; Brugamyer, Erik; Buchhave, Lars A.; Burke, Chris; Caldwell, Douglas A.; Carter, Josh; Charbonneau, David; Crepp, Justin R.; Christensen-Dalsgaard, Jorgen; Christiansen, Jessie L.; Ciardi, David; Cochran, William D.; DeVore, Edna; Doyle, Laurance; Dupree, Andrea K.; Endl, Michael; Everett, Mark E.; Ford, Eric B.; Fortney, Jonathan; Gautier, Thomas N., III; Geary, John C.; Gould, Alan; Haas, Michael; Henze, Christopher; Howard, Andrew W.; Howell, Steve B.; Huber, Daniel; Jenkins, Jon M.; Kjeldsen, Hans; Kolbl, Rea; Kolodziejczak, Jeffery; Latham, David W.; Lee, Brian L.; Lopez, Eric; Mullally, Fergal; Orosz, Jerome A.; Prsa, Andrej; Quintana, Elisa V.; Sanchis-Ojeda, Roberto; Sasselov, Dimitar; Seader, Shawn; Shporer, Avi; Steffen, Jason H.; Still, Martin; Tenenbaum, Peter; Thompson, Susan E.; Torres, Guillermo; Twicken, Joseph D.; Welsh, William F.; Winn, Joshua N.
2013
SCIENCE
DOI
10.1126/science.1234702
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-circle plus), 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-circle plus < planet radius <= 2.0 R-circle plus) 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 similar to 7 billion years suggest that both planets could be solid, either with a rocky composition or composed of mostly solid water in their bulk.