A rocky composition for an Earth-sized exoplanet

Andrew W. Howard (), Roberto Sanchis-Ojeda (), Geoffrey W. Marcy, John Asher Johnson, Joshua N. Winn, Howard Isaacson, Debra A. Fischer, Benjamin J. Fulton, Evan Sinukoff and Jonathan J. Fortney
Additional contact information
Andrew W. Howard: Institute for Astronomy, University of Hawaii at Manoa, 2680 Woodlawn Drive, Honolulu, Hawaii 96822, USA
Roberto Sanchis-Ojeda: and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology
Geoffrey W. Marcy: University of California
John Asher Johnson: Harvard-Smithsonian Center for Astrophysics, 60 Garden Street
Joshua N. Winn: and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology
Howard Isaacson: University of California
Debra A. Fischer: Yale University
Benjamin J. Fulton: Institute for Astronomy, University of Hawaii at Manoa, 2680 Woodlawn Drive, Honolulu, Hawaii 96822, USA
Evan Sinukoff: Institute for Astronomy, University of Hawaii at Manoa, 2680 Woodlawn Drive, Honolulu, Hawaii 96822, USA
Jonathan J. Fortney: University of California

Nature, 2013, vol. 503, issue 7476, 381-384

Abstract: Doppler spectroscopic measurements of the mass of the Earth-sized planet Kepler-78b reveal that its mean density is similar to Earth’s, suggesting a composition of rock and iron.

Date: 2013
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DOI: 10.1038/nature12767

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