Astrophysics, abstract
astro-ph/0607591

From: David Wilson Mr [view email]

Date: Wed, 26 Jul 2006 12:58:30 GMT (66kb)

SuperWASP Observations of the Transiting Extrasolar planet XO-1b

Authors: D. M. Wilson, B. Enoch, D. J. Christian, W. I. Clarkson, A. Collier Cameron, H. J. Deeg, A. Evans, C. A. Haswell, C. Hellier, S. T. Hodgkin, K. Horne, J. Irwin, S. R. Kane, T. A. Lister, P. F. L. Maxted, A. J. Norton, D. Pollacco, I. Skillen, R. A. Street, R. G. West, P. J. Wheatley

Comments: 7 pages incl. 2 figures, accepted for publication in PASP

We report on observations of 11 transit events of the transiting extrasolar planet XO-1b by the SuperWASP-North observatory. From our data, obtained during May-September 2004, we find that the XO-1b orbital period is 3.941634 +/- 0.000137 days, the planetary radius is 1.34 +/- 0.12 Rjup and the inclination is 88.92 +/- 1.04 degrees, in good agreement with previously published values. We tabulate the transit timings from 2004 SuperWASP and XO data, which are the earliest obtained for XO-1b, and which will therefore be useful for future investigations of timing variations caused by additional perturbing planets. We also present an ephemeris for the transits. See this http URL for general project details.

http://arxiv.org/abs/astro-ph/0607591