2008/10/20 by N. P. Gibson, D. Pollacco, E. K. Simpson +9 · 2 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Ephemeris #Exoplanet #Light curve #Planet #RADIUS #Scientific Research and Discoveries #Stellar, planetary, and galactic studies #Telescope #Transit (satellite) #astro-ph
paper · pdf · doi:10.1051/0004-6361:200811015
published as A&A 492, 603-607 (2008) · 5 pages, 2 figures, Accepted for publication in A&A
arxiv created 2008/10/20 · openalex publication_date 2008/10/30 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Some of the first results are reported from RISE – a new fast camera mounted on the Liverpool Telescope primarily designed to obtain high time-resolution light curves of transiting extrasolar planets for the purpose of transit timing. A full and partial transit of WASP-3 are presented, and a Markov-Chain Monte Carlo analysis is used to update the parameters from the discovery paper. This results in a planetary radius of RJ and therefore a density of , consistent with previous results. The inclination is deg, in agreement (but with a significant improvement in the precision) with the previously determined value. Central transit times are found to be consistent with the ephemeris given in the discovery paper; however, a new ephemeris calculated using the longer baseline results in Tc(0) = 2 454 605.55915 ± 0.00023 HJD and P = 1.846835 ± 0.000002 days.