An Earth-sized planet in the habitable zone of a cool star
Article
Article Title | An Earth-sized planet in the habitable zone of a cool star |
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ERA Journal ID | 17478 |
Article Category | Article |
Authors | Quintana, Elisa V. (Author), Barclay, Thomas (Author), Raymond, Sean N. (Author), Rowe, Jason F. (Author), Bolmont, Emeline (Author), Caldwell, Douglas A. (Author), Howell, Steve B. (Author), Kane, Stephen R. (Author), Huber, Daniel (Author), Crepp, Justin R. (Author), Lissauer, Jack J. (Author), Ciardi, David R. (Author), Coughlin, Jeffrey L. (Author), Everett, Mark E. (Author), Henze, Christopher E. (Author), Horch, Elliott (Author), Isaacson, Howard (Author), Ford, Eric B. (Author), Adams, Fred C. (Author), Still, Martin (Author), Hunter, Roger C. (Author), Quarles, Billy (Author) and Selsis, Franck (Author) |
Journal Title | Science |
Journal Citation | 344 (6181), pp. 277-280 |
Number of Pages | 4 |
Year | 2014 |
Publisher | American Association for the Advancement of Science (AAAS) |
Place of Publication | United States |
ISSN | 0036-8075 |
0096-3771 | |
1095-9203 | |
Digital Object Identifier (DOI) | https://doi.org/10.1126/science.1249403 |
Web Address (URL) | http://science.sciencemag.org/content/344/6181/277 |
Abstract | The quest for Earth-like planets is a major focus of current exoplanet research. Although planets that are Earth-sized and smaller have been detected, these planets reside in orbits that are too close to their host star to allow liquid water on their surfaces. We present the detection of Kepler-186f, a 1.11 ± 0.14 Earth-radius planet that is the outermost of five planets, all roughly Earth-sized, that transit a 0.47 ± 0.05 solar-radius star. The intensity and spectrum of the star's radiation place Kepler-186f in the stellar habitable zone, implying that if Kepler-186f has an Earth-like atmosphere and water at its surface, then some of this water is likely to be in liquid form. |
Keywords | Earth (Planet); Exobiology; Extraterrestrial Environment; Planets; Stars, Celestial; Water; Physiology; Geobase |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | SETI Institute, United States |
Bay Area Environmental Research Institute, United States | |
University of Bordeaux, France | |
National Aeronautics and Space Administration (NASA), United States | |
San Francisco State University, United States | |
University of Notre Dame, United States | |
NASA Ames Research Center, United States | |
National Optical Astronomy Observatory, United States | |
Southern Connecticut State University, United States | |
University of California, United States | |
Pennsylvania State University, United States | |
University of Michigan, United States | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q430z/an-earth-sized-planet-in-the-habitable-zone-of-a-cool-star
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