Photometric follow-up of the transiting planet around WASP-1

Preprint

18 October 2006

preprint
Published by arXiv in arXiv

Abstract

We report on photometric follow-up of the recently discovered transiting planet WASP-1b. We observed two transits with the Wise Observatory 1m telescope, and used a variant of the EBOP code simultaneously with the SysRem detrending code for fitting the light curve. Assuming a stellar mass of 1.15 M_sun we derived a planetary radius of R_p = 1.398 +- 0.076 R_J and mass of M_p = 0.867 +- 0.073 M_J. We also derived an improved ephemeris for the transit: T_c = (2454013.31269 +- 0.00047) + N_tr * (2.519961 +- 0.000018). The new planet is an inflated, low-density planet, similar to HAT-P-1b and HD209458b.

Keywords

PHOTOMETRIC FOLLOW
TRANSITING PLANET
PLANET WASP
PLANETARY
INFLATED
WASP
CODE

All Related Versions

Version 1, 2006-10-18, ArXiv
Version 2, 2007-01-22, ArXiv
Published version: Monthly Notices of the Royal Astronomical Society, 376 (3), 1296.

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