WASP-30b: a 61 Mjup 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

show 12 more authors

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. S\'egransan R. A. Street S. Udry

Authors on Pith no claims yet

classification 🌌 astro-ph.SR astro-ph.EP

keywords browndwarfconsistentrjupstarwasp-30batmospherebaraffe

0 comments

read the original abstract

We report the discovery of a 61-Jupiter-mass brown dwarf, 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 +/- 0.02 RJup) for the companion that is consistent with that predicted (0.914 RJup) by a model of a 1-Gyr-old, non-irradiated brown dwarf 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 & Baraffe (2000), thus confirming the theory.

This paper has not been read by Pith yet.

WASP-30b: a 61 Mjup brown dwarf transiting a V=12, F8 star

discussion (0)