TY - JOUR
T1 - Discovery and validation of Kepler-452b
T2 - A 1.6 R⊕ super earth exoplanet in the habitable zone of a G2 star
AU - Jenkins, Jon M.
AU - Twicken, Joseph D.
AU - Batalha, Natalie M.
AU - Caldwell, Douglas A.
AU - Cochran, William D.
AU - Endl, Michael
AU - Latham, David W.
AU - Esquerdo, Gilbert A.
AU - Seader, Shawn
AU - Bieryla, Allyson
AU - Petigura, Erik
AU - Ciardi, David R.
AU - Marcy, Geoffrey W.
AU - Isaacson, Howard
AU - Huber, Daniel
AU - Rowe, Jason F.
AU - Torres, Guillermo
AU - Bryson, Stephen T.
AU - Buchhave, Lars
AU - Ramirez, Ivan
AU - Wolfgang, Angie
AU - Li, Jie
AU - Campbell, Jennifer R.
AU - Tenenbaum, Peter
AU - Sanderfer, Dwight
AU - Henze, Christopher E.
AU - Catanzarite, Joseph H.
AU - Gilliland, Ronald L.
AU - Borucki, William J.
PY - 2015/8/1
Y1 - 2015/8/1
N2 - We report on the discovery and validation of Kepler-452b, a transiting planet identified by a search through the 4 years of data collected by NASA's Kepler Mission. This possibly rocky planet orbits its G2 host star every days, the longest orbital period for a small ( ) transiting exoplanet to date. The likelihood that this planet has a rocky composition lies between 49% and 62%. The star has an effective temperature of 5757 ± 85 K and a of 4.32 ± 0.09. At a mean orbital separation of AU, this small planet is well within the optimistic habitable zone of its star (recent Venus/early Mars), experiencing only 10% more flux than Earth receives from the Sun today, and slightly outside the conservative habitable zone (runaway greenhouse/maximum greenhouse). The star is slightly larger and older than the Sun, with a present radius of and an estimated age of ∼6 Gyr. Thus, Kepler-452b has likely always been in the habitable zone and should remain there for another ∼3 Gyr.
AB - We report on the discovery and validation of Kepler-452b, a transiting planet identified by a search through the 4 years of data collected by NASA's Kepler Mission. This possibly rocky planet orbits its G2 host star every days, the longest orbital period for a small ( ) transiting exoplanet to date. The likelihood that this planet has a rocky composition lies between 49% and 62%. The star has an effective temperature of 5757 ± 85 K and a of 4.32 ± 0.09. At a mean orbital separation of AU, this small planet is well within the optimistic habitable zone of its star (recent Venus/early Mars), experiencing only 10% more flux than Earth receives from the Sun today, and slightly outside the conservative habitable zone (runaway greenhouse/maximum greenhouse). The star is slightly larger and older than the Sun, with a present radius of and an estimated age of ∼6 Gyr. Thus, Kepler-452b has likely always been in the habitable zone and should remain there for another ∼3 Gyr.
UR - https://www.scopus.com/pages/publications/84938373050
UR - https://www.scopus.com/pages/publications/84938373050#tab=citedBy
U2 - 10.1088/0004-6256/150/2/56
DO - 10.1088/0004-6256/150/2/56
M3 - Article
SN - 0004-6256
VL - 150
JO - Astronomical Journal
JF - Astronomical Journal
IS - 2
M1 - 56
ER -