Kepler-10 c: a 2.2 Earth Radius Transiting Planet in a Multiple System
dc.contributor.utaustinauthor | Cochran, William D. | en_US |
dc.creator | Fressin, Francois | en_US |
dc.creator | Torres, Guillermo | en_US |
dc.creator | Desert, Jean-Michel | en_US |
dc.creator | Charbonneau, David | en_US |
dc.creator | Batalha, Natalie M. | en_US |
dc.creator | Fortney, Jonathan J. | en_US |
dc.creator | Rowe, Jason F. | en_US |
dc.creator | Allen, Christopher | en_US |
dc.creator | Borucki, William J. | en_US |
dc.creator | Brown, Timothy M. | en_US |
dc.creator | Bryson, Stephen T. | en_US |
dc.creator | Ciardi, David R. | en_US |
dc.creator | Cochran, William D. | en_US |
dc.creator | Deming, Drake | en_US |
dc.creator | Dunham, Edward W. | en_US |
dc.creator | Fabrycky, Daniel C. | en_US |
dc.creator | Gautier, Thomas N., III | en_US |
dc.creator | Gilliland, Ronald L. | en_US |
dc.creator | Henze, Christopher E. | en_US |
dc.creator | Holman, Matthew J. | en_US |
dc.creator | Howell, Steve B. | en_US |
dc.creator | Jenkins, Jon M. | en_US |
dc.creator | Kinemuchi, Karen | en_US |
dc.creator | Knutson, Heather | en_US |
dc.creator | Koch, David G. | en_US |
dc.creator | Latham, David W. | en_US |
dc.creator | Lissauer, Jack J. | en_US |
dc.creator | Marcy, Geoffrey W. | en_US |
dc.creator | Ragozzine, Darin | en_US |
dc.creator | Sasselov, Dimitar D. | en_US |
dc.creator | Still, Martin | en_US |
dc.creator | Tenenbaum, Peter | en_US |
dc.creator | Uddin, Kamal | en_US |
dc.date.accessioned | 2016-10-28T19:34:23Z | |
dc.date.available | 2016-10-28T19:34:23Z | |
dc.date.issued | 2011-11 | en_US |
dc.description.abstract | The Kepler mission has recently announced the discovery of Kepler-10 b, the smallest exoplanet discovered to date and the first rocky planet found by the spacecraft. A second, 45 day period transit-like signal present in the photometry from the first eight months of data could not be confirmed as being caused by a planet at the time of that announcement. Here we apply the light curve modeling technique known as BLENDER to explore the possibility that the signal might be due to an astrophysical false positive (blend). To aid in this analysis we report the observation of two transits with the Spitzer Space Telescope at 4.5 mu m. When combined, they yield a transit depth of 344 +/- 85 ppm that is consistent with the depth in the Kepler passband (376 +/- 9 ppm, ignoring limb darkening), which rules out blends with an eclipsing binary of a significantly different color than the target. Using these observations along with other constraints from high-resolution imaging and spectroscopy, we are able to exclude the vast majority of possible false positives. We assess the likelihood of the remaining blends, and arrive conservatively at a false alarm rate of 1.6 x 10(-5) that is small enough to validate the candidate as a planet (designated Kepler-10 c) with a very high level of confidence. The radius of this object is measured to be R-p = 2.227(-0.057)(+ 0.052) R-circle plus (in which the error includes the uncertainty in the stellar properties), but currently available radial-velocity measurements only place an upper limit on its mass of about 20 M-circle plus. Kepler-10 c represents another example (with Kepler-9 d and Kepler-11 g) of statistical "validation" of a transiting exoplanet, as opposed to the usual "confirmation" that can take place when the Doppler signal is detected or transit timing variations are measured. It is anticipated that many of Kepler's smaller candidates will receive a similar treatment since dynamical confirmation may be difficult or impractical with the sensitivity of current instrumentation. | en_US |
dc.description.department | McDonald Observatory | en_US |
dc.description.sponsorship | NASA's Science Mission Directorate | en_US |
dc.description.sponsorship | NASA through JPL/Caltech | en_US |
dc.description.sponsorship | NASA | en_US |
dc.identifier | doi:10.15781/T2Q52FG2P | |
dc.identifier.citation | Fressin, François, Guillermo Torres, Jean-Michel Désert, David Charbonneau, Natalie M. Batalha, Jonathan J. Fortney, Jason F. Rowe et al. "Kepler-10 c: a 2.2 earth radius transiting planet in a multiple system." The Astrophysical Journal Supplement Series, Vol. 197, No. 1 (Nov., 2011): 5. | en_US |
dc.identifier.doi | 10.1088/0067-0049/197/1/5 | en_US |
dc.identifier.issn | 0067-0049 | en_US |
dc.identifier.uri | http://hdl.handle.net/2152/42923 | |
dc.language.iso | English | en_US |
dc.relation.ispartof | en_US | |
dc.relation.ispartofserial | Astrophysical Journal Supplement Series | en_US |
dc.rights | Administrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University. | en_US |
dc.rights.restriction | Open | en_US |
dc.subject | binaries: eclipsing | en_US |
dc.subject | planetary systems | en_US |
dc.subject | stars: individual (kepler-10, | en_US |
dc.subject | koi-072, kic 11904151) | en_US |
dc.subject | stars: statistics | en_US |
dc.subject | spitzer-space-telescope | en_US |
dc.subject | exoplanet hd 189733b | en_US |
dc.subject | low-mass | en_US |
dc.subject | observational | en_US |
dc.subject | evidence | en_US |
dc.subject | secondary eclipse | en_US |
dc.subject | blend scenarios | en_US |
dc.subject | light curves | en_US |
dc.subject | warm | en_US |
dc.subject | spitzer | en_US |
dc.subject | candidates | en_US |
dc.subject | atmosphere | en_US |
dc.subject | astronomy & astrophysics | en_US |
dc.title | Kepler-10 c: a 2.2 Earth Radius Transiting Planet in a Multiple System | en_US |
dc.type | Article | en_US |