Kepler-7b: A Transiting Planet With Unusually Low Density
Abstract
We report on the discovery and confirmation of Kepler-7b, a transiting planet with unusually low density. The mass is less than half that of Jupiter, M(p) = 0.43M(j), but the radius is 50% larger, R(p) = 1.48R(j). The resulting density, Rho(p) = 0.17 g cm(^ -3), is the second lowest reported so far for an extrasolar planet. The orbital period is fairly long, P = 4.886 days, and the host star is not much hotter than the Sun, T(eff) = 6000 K. However, it is more massive and considerably larger than the Sun, M(*) = 1.35M of the sun and R = 1.84R of the sun, and must be near the end of its life on the main sequence.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 20, 2010
- Accession Number
- ADA559225
Entities
People
- David G. Koch
- David W. Latham
- Douglas A. Caldwell
- Edward W. Dunham
- Gibor Basri
- Lars A. Buchhave
- Natalie M. Batalha
- Timothy M. Brown
- William D. Cochran
- William J. Borucki
Organizations
- United States Naval Observatory Flagstaff Station