J/A+A/528/A65ivo://CDS.VizieR/J/A+A/528/A65doi:10.26093/cds/vizier.35280065CDSMaciejewski G.Errmann R.Raetz St.Seeliger M.Spaleniak I.,Neuhaeuser R.2017-06-27T06:38:00Z2011-03-03T07:48:31ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frmultiple-starssolar-system-planetsccd-photometryThe transiting extrasolar planet WASP-12b was found to be the one of the most intensely irradiated exoplanets. It is unexpectedly bloated and is losing mass which may accrete into the host star. Our aim was to refine parameters of this intriguing system and search for signs of transit timing variations. We gathered high-precision light curves of two transits of WASP-12b. Assuming various limb darkening laws, we generated best-fitting models and redetermined parameters of the system. Error estimates were derived by the prayer bread method and Monte Carlo simulations. System's parameters obtained by us were found to agree with previous studies within one sigma. Use of the non-linear limb darkening laws resulted in the best- fitting models. With two new mid-transit times, the ephemeris was refined to BJD_TDB_=(2454508.97682+/-0.00020)+(1.09142245+/-0.00000033)E. Interestingly, indications for transit timing variation were detected at the level of 3.4 sigma. This signal could be induced by an additional planet in the system. Simplified numerical simulations showed that a perturber could be a terrestrial-type planet if both planets are in a low-order orbital resonance. However, we emphasise that further observations are needed to confirm variation and to put constraints on properties of the perturber.2011A&A...528A..65Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/528/A65CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/MNRAS/408/1680 : Transiting planetary system WASP-2 (Southworth+, 2010)J/MNRAS/399/287 : Transiting planetary system WASP-4 (Southworth+, 2009)J/AJ/137/3826 : Two transits of the giant planet WASP-4b (Winn+, 2009)J/MNRAS/396/1023 : Transiting planetary system WASP-5 (Southworth+, 2009)J/A+A/501/785 : Discovery and characterization of WASP-6b (Gillon+, 2009)J/A+A/527/A8 : Transiting planetary system WASP-7 (Southworth+, 2011)J/A+A/517/L1 : Radial velocities of WASP-8b planet (Queloz+, 2010)J/A+A/502/391 : WASP-13b photometry and radial velocities (Skillen+, 2009)J/ApJ/707/167 : Transiting planetary system WASP-18 (Southworth+, 2009)J/A+A/513/L3 : H-band thermal emission of WASP-19b (Anderson+, 2010)J/A+A/519/A98 : Transit of exoplanet WASP-21b (Bouchy+, 2010)J/A+A/520/A56 : WASP-26b RV and photometric data (Smalley+, 2010)J/A+A/526/L10 : Photometic follow-up of WASP-33 (Herrero+, 2011)J/A+A/526/A130 : WASP-34b photometry and radial velocities (Smalley+, 2011)J/A+A/525/A54 : Transits of WASP-38b (Barros+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/528/A65https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/528/A65http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/528/A65https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/528/A65https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/528/A65http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/528/A65GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/528/A65/rv*Light curve observed on 2 and 26 Feb, 2010recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJDJulian Day (1)dtime.epochdoubleRmagRelative magnitude in R bandmagphot.mag;em.opt.Rdoublee_RmagMagnitude errormagstat.error;phot.mag;em.opt.Rdouble