WASP-30b: A 61 M $_Jup$ Brown Dwarf Transiting a V = 12, F8 Star
Research output: Contribution to journal › Article › peer-review
Colleges, School and Institutes
We report the discovery of a 61-Jupiter-mass brown dwarf (BD), which transits its F8V host star, WASP-30, every 4.16 days. From a range of age indicators we estimate the system age to be 1-2 Gyr. We derive a radius (0.89 plusmn 0.02 R $_Jup$) for the companion that is consistent with that predicted (0.914 R $_Jup$) by a model of a 1 Gyr old, non-irradiated BD with a dusty atmosphere. The location of WASP-30b in the minimum of the mass-radius relation is consistent with the quantitative prediction of Chabrier amp Baraffe, thus confirming the theory.
|Journal||Astrophysical Journal Letters|
|Publication status||Published - 1 Jan 2011|
- binaries: eclipsing, brown dwarfs, stars: individual: WASP-30