WASP-10b: a 3M_J, gas-giant planet transiting a late-type K star
Abstract
We report the discovery of WASP-10b, a new transiting extrasolar planet (ESP) discovered by the WASP Consortium and confirmed using NOT FIES and SOPHIE radial velocity data. A 3.09 day period, 29 mmag transit depth, and 2.36 hour duration are derived for WASP-10b using WASP and high precision photometric observations. Simultaneous fitting to the photometric and radial velocity data using a Markov-chain Monte Carlo procedure leads to a planet radius of 1.28R_J, a mass of 2.96M_J and eccentricity of ~0.06. WASP-10b is one of the more massive transiting ESPs, and we compare its characteristics to the current sample of transiting ESP, where there is currently little information for masses greater than ~2M_J and non-zero eccentricities. WASP-10's host star, GSC 2752-00114 (USNO-B1.0 1214-0586164) is among the fainter stars in the WASP sample, with V=12.7 and a spectral type of K5. This result shows promise for future late-type dwarf star surveys.
Keywords
Cite
@article{arxiv.0806.1482,
title = {WASP-10b: a 3M_J, gas-giant planet transiting a late-type K star},
author = {D. J. Christian and N. P. Gibson and E. K. Simpson and R. A. Street and I. Skillen and D. Pollacco and A. Collier Cameron and Y. C. Joshi and F. P. Keenan and H. C. Stempels and C. A. Haswell and K. Horne and D. R. Anderson and S. Bentley and F. Bouchy and W. I. Clarkson and B. Enoch and L. Hebb and G. Hébrard and C. Hellier and J. Irwin and S. R. Kane and T. A. Lister and B. Loeillet and P. Maxted and M. Mayor and I. McDonald and C. Moutou and A. J. Norton and N. Parley and F. Pont and D. Queloz and R. Ryans and B. Smalley and A. M. S. Smith and I. Todd and S. Udry and R. G. West and P. J. Wheatley and D. M. Wilson},
journal= {arXiv preprint arXiv:0806.1482},
year = {2009}
}
Comments
6 Pages, 3 Figures, 3 Tables, accepted in MNRAS