TY - JOUR
T1 - Photometric follow-up of the transiting planet WASP-1b
AU - Shporer, A.
AU - Tamuz, O.
AU - Zucker, S.
AU - Mazeh, T.
PY - 2007/4
Y1 - 2007/4
N2 - We report on photometric follow-up of the recently discovered transiting planet WASP-1b. We observed two transits with the Wise Observatory 1-m telescope, and used a variant of the Eclipsing Binary Orbit Program (EBOP) code together with the Sys-Rem detrending approach to fit the light curve. Assuming a stellar mass of 1.15M⊙, we derived a planetary radius of R p = 1.40 ±0.06RJ and mass of Mp = 0.87 ± 0.07MJ. An uncertainty of 15 per cent in the stellar mass results in an additional systematic uncertainty of 5 per cent in the planetary radius and of 10 per cent in planetary mass. Our observations yielded a slightly better ephemeris for the centre of the transit: Tc [HJD] = (2454013.3127 ± 0.0004) + Ntr(2.51996 ± 0.00002). The new planet is an inflated, low-density planet, similar to HAT-P-1b and HD209458b.
AB - We report on photometric follow-up of the recently discovered transiting planet WASP-1b. We observed two transits with the Wise Observatory 1-m telescope, and used a variant of the Eclipsing Binary Orbit Program (EBOP) code together with the Sys-Rem detrending approach to fit the light curve. Assuming a stellar mass of 1.15M⊙, we derived a planetary radius of R p = 1.40 ±0.06RJ and mass of Mp = 0.87 ± 0.07MJ. An uncertainty of 15 per cent in the stellar mass results in an additional systematic uncertainty of 5 per cent in the planetary radius and of 10 per cent in planetary mass. Our observations yielded a slightly better ephemeris for the centre of the transit: Tc [HJD] = (2454013.3127 ± 0.0004) + Ntr(2.51996 ± 0.00002). The new planet is an inflated, low-density planet, similar to HAT-P-1b and HD209458b.
KW - Planetary systems
KW - Stars: individual: WASP-1
KW - Techniques: photometric
UR - http://www.scopus.com/inward/record.url?scp=34147115020&partnerID=8YFLogxK
U2 - 10.1111/j.1365-2966.2007.11537.x
DO - 10.1111/j.1365-2966.2007.11537.x
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:34147115020
SN - 0035-8711
VL - 376
SP - 1296
EP - 1300
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 3
ER -