WASP-30b: A 61 M $_Jup$ Brown Dwarf Transiting a V = 12, F8 Star

D.~R. Anderson, A. Collier Cameron, C. Hellier, M. Lendl, P.~F.~L. Maxted, D. Pollacco, D. Queloz, B. Smalley, A.~M.~S. Smith, I. Todd, A.~H.~M.~J. Triaud, R.~G. West, S.~C.~C. Barros, B. Enoch, M. Gillon, T.~A. Lister, F. Pepe, D. Ségransan, R.~A. Street, S. Udry

Research output: Contribution to journalArticlepeer-review

67 Citations (Scopus)


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.
Original languageEnglish
Pages (from-to)L19
JournalAstrophysical Journal Letters
Publication statusPublished - 1 Jan 2011


  • binaries: eclipsing, brown dwarfs, stars: individual: WASP-30


Dive into the research topics of 'WASP-30b: A 61 M $_Jup$ Brown Dwarf Transiting a V = 12, F8 Star'. Together they form a unique fingerprint.

Cite this