We report the discovery of a transiting planet orbiting the star TYC 2-1155-1. The star, WASP-32, is a moderately bright (V=11.3) solar-type star (Teff=6100 +- 100K, [Fe/H] = -0.13 +- 0.10). The lightcurve of the star obtained with the WASP-South and WASP-North instruments shows periodic transit-like features with a depth of about 1% and a duration of 0.10d every 2.72d. The presence of a transit-like feature in the lightcurve is confirmed using z-band photometry obtained with Faulkes Telescope North. High resolution spectroscopy obtained with the CORALIE spectrograph confirms the presence of a planetary mass companion. From a combined analysis of the spectroscopic and photometric data, assuming that the star is a typical main-sequence star, we estimate that the planet has a mass M_p = 3.60 +- 0.07 M_Jup and a radius R_p = 1.19 +- 0.06R_Jup. WASP-32 is one of a small group of hot Jupiters with masses M_p > 3M_Jup. We find that some stars with hot Jupiter companions and with masses M_* =~ 1.2M_sun, including WASP-32, are depleted in lithium, but that the majority of these stars have similar lithium abundances to field stars.
@article{arxiv.1010.1742,
title = {WASP-32b: A transiting hot Jupiter planet orbiting a lithium-poor, solar-type star},
author = {P. F. L Maxted and D. R. Anderson and A. Collier Cameron and M. Gillon and C. Hellier and D. Queloz and B. Smalley and A. H. M. J. Triaud and R. G. West and R. Enoch and T. A. Lister and F. Pepe and D. L. Pollacco and D. Ségransan and I. Skillen and S. Udry},
journal= {arXiv preprint arXiv:1010.1742},
year = {2015}
}