Kepler's first rocky planet: Kepler-10b
Article
Article Title | Kepler's first rocky planet: Kepler-10b |
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ERA Journal ID | 1057 |
Article Category | Article |
Authors | Batalha, Natalie M. (Author), Borucki, William J. (Author), Bryson, Stephen T. (Author), Buchhave, Lars A. (Author), Caldwell, Douglas A. (Author), Christensen-Dalsgaard, Jorgen (Author), Ciardi, David (Author), Dunham, Edward W. (Author), Fressin, Francois (Author), Gautier, Thomas N. (Author), Gilliland, Ronald L. (Author), Haas, Michael R. (Author), Howell, Steve B. (Author), Jenkins, Jon M. (Author), Kjeldsen, Hans (Author), Koch, David G. (Author), Latham, David W. (Author), Lissauer, Jack J. (Author), Marcy, Geoffrey W. (Author), Rowe, Jason F. (Author), Sasselov, Dimitar D. (Author), Seager, Sara (Author), Steffen, Jason H. (Author), Torres, Guillermo (Author), Basri, Gibor S. (Author), Brown, Timothy M. (Author), Charbonneau, David (Author), Christiansen, Jessie (Author), Clarke, Bruce (Author), Cochran, William D. (Author), Dupree, Andrea (Author), Fabrycky, Daniel C. (Author), Fischer, Debra (Author), Ford, Eric B. (Author), Fortney, Jonathan (Author), Girouard, Forrest R. (Author), Holman, Matthew J. (Author), Johnson, John (Author), Isaacson, Howard (Author), Klaus, Todd C. (Author), MacHalek, Pavel (Author), Moorehead, Althea V. (Author), Morehead, Robert C. (Author), Ragozzine, Darin (Author), Tenenbaum, Peter (Author), Twicken, Joseph (Author), Quinn, Samuel (Author), Van Cleve, Jeffrey (Author), Walkowicz, Lucianne M. (Author), Welsh, William F. (Author), DeVore, Edna (Author) and Gould, Alan (Author) |
Journal Title | The Astrophysical Journal: an international review of astronomy and astronomical physics |
Journal Citation | 729 (1), pp. 27-47 |
Article Number | 27 |
Number of Pages | 21 |
Year | 2011 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-637X |
1538-4357 | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/0004-637X/729/1/27 |
Web Address (URL) | http://iopscience.iop.org/article/10.1088/0004-637X/729/1/27 |
Abstract | NASA's Kepler Mission uses transit photometry to determine the frequency of Earth-size planets in or near the habitable zone of Sun-like stars. The mission reached a milestone toward meeting that goal: the discovery of its first rocky planet, Kepler-10b. Two distinct sets of transit events were detected: (1) a 152 4 ppm dimming lasting 1.811 0.024 hr with ephemeris T[BJD] =2454964.57375 +0.00060 -0.00082 + N*0.837495+0.000004 -0.000005 days and (2) a 376 9ppm dimming lasting 6.86 0.07 hr with ephemeris T[BJD] =2454971.6761+0.0020 -0.0023 + N*45.29485+0.00065 -0.00076 days. Statistical tests on the photometric and pixel flux time series established the viability of the planet candidates triggering ground-based follow-up observations. Forty precision Doppler measurements were used to confirm that the short-period transit event is due to a planetary companion. The parent star is bright enough for asteroseismic analysis. Photometry was collected at 1 minute cadence for >4 months from which we detected 19 distinct pulsation frequencies. Modeling the frequencies resulted in precise knowledge of the fundamental stellar properties. Kepler-10 is a relatively old (11.9 4.5Gyr) but otherwise Sun-like main-sequence star with T eff = 5627 44K, M = 0.895 0.060 M, and R = 1.056 0.021 R. Physical models simultaneously fit to the transit light curves and the precision Doppler measurements yielded tight constraints on the properties of Kepler-10b that speak to its rocky composition: M P = 4.56+1.17 -1.29 M ⊕, R P = 1.416+0.033 -0.036 R ⊕, and ρP = 8.8+2.1 -2.9gcm-3. Kepler-10b is the smallest transiting exoplanet discovered to date. |
Keywords | planetary systems; photometric; spectroscopic; |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | For access to this article, please click on the URL link provided. |
Institution of Origin | University of Southern Queensland |
Byline Affiliations | San Jose University, United States |
NASA Ames Research Center, United States | |
Center for Astrophysics Harvard and Smithsonian, United States | |
SETI Institute, United States | |
Aarhus University, Denmark | |
National Aeronautics and Space Administration (NASA), United States | |
Lowell Observatory, United States | |
California Institute of Technology (Caltech), United States | |
Space Telescope Science Institute, United States | |
National Optical Astronomy Observatory, United States | |
University of California, United States | |
Massachusetts Institute of Technology, United States | |
Fermilab Cosmic Physics Centre, United States | |
Las Cumbres Observatory, United States | |
University of Texas at Austin, United States | |
Massey University, New Zealand | |
University of Florida, United States | |
San Diego State University, United States | |
Lawrence Hall of Science, United States |
https://research.usq.edu.au/item/q4341/kepler-s-first-rocky-planet-kepler-10b
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