J/A+A/635/A6ivo://CDS.VizieR/J/A+A/635/A6doi:10.26093/cds/vizier.36350006CDSBonfanti A.Gillon M.2021-01-05T07:25:44Z2020-02-28T08:34:41ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsphotometryradial-velocitystellar-evolutionary-modelsBy analysing the transit light-curve of a planet-hosting star or the induced radial velocity oscillations, many useful information on the planet may be retrieved. However, inferring the physical parameters of the planet (mass, size, semi-major axis, etc.) requires the preliminary knowledge of some parameters of the host star, especially its mass and/or radius, that are generally inferred through theoretical evolutionary models. The paper aims at presenting and testing a whole algorithm devoted to the complete characterization of an exoplanetary system thanks to the global analysis of photometric and/or radial velocity time-series combined to observational stellar parameters derived either from spectroscopy or photometry. We developed an integrated tool called MCMCI that combines the Markov Chain Monte Carlo (MCMC) approach for analysing photometric and/or radial velocity time-series with a proper interpolation within stellar evolutionary isochrones and tracks (known as Isochrone placement) to be performed at each chain step, to retrieve stellar theoretical parameters, such as age, mass and radius. We tested the MCMCI both on the HD 219134 multiplanetary system hosting two transiting rocky super-Earths and on WASP-4, that hosts a bloated hot Jupiter. Even considering different input approaches, a final convergence was reached within the code, we found good agreement with the results already stated in the literature and we obtained more precise output parameters, especially concerning planetary masses. The MCMCI tool offers the opportunity of performing an integrated analysis of an exoplanetary system, without splitting it into the preliminary stellar characterization through theoretical models, but rather favouring a close interaction between the light-curve analysis and the isochrones, so that the parameters recovered at each step of the MCMC enter as input of the Isochrone placement.2020A&A...635A...6Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/635/A6CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJ/821/74 : 27yr of RV observations of HD 219134 (Johnson+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/635/A6https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/635/A6http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/635/A6https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/635/A6https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/635/A6http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/635/A6GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/635/A6/phot1Light-curve No. 1 due to the HD 219134 b transitSkySkyephot.mag.sbdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date (UTC) (BJD-2450000)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxError on normalized fluxstat.error;phot.fluxdoublexposx locationpixpos.cartesian.xdoubleyposy locationpixpos.cartesian.ydoubleFWHMPSF's FHWMpixphys.angSizedoubleFWHMxPSF's FWHM along the x-directionpixphys.angSizedoubleFWHMyPSF's FWHM along the y-directionpixphys.angSizedoubleAirmassAirmassobs.airMassdoubleTexpExposure timestime.duration;obs.exposuredoubleJ/A+A/635/A6/phot2Light-curve No. 2 due to the HD 219134 b transitrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date (UTC) (BJD-2450000)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxError on normalized fluxstat.error;phot.fluxdoublexposx locationpixpos.cartesian.xdoubleyposy locationpixpos.cartesian.ydoubleFWHMPSF's FHWMpixphys.angSizedoubleFWHMxPSF's FWHM along the x-directionpixphys.angSizedoubleFWHMyPSF's FWHM along the y-directionpixphys.angSizedoubleSkySkyephot.mag.sbdoubleAirmassAirmassobs.airMassdoubleTexpExposure timestime.duration;obs.exposuredoubleJ/A+A/635/A6/phot3Light-curve No. 3 due to the HD 219134 c transitxposx locationpixpos.cartesian.xdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date (UTC) (BJD-2450000)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxError on normalized fluxstat.error;phot.fluxdoubleyposy locationpixpos.cartesian.ydoubleFWHMPSF's FHWMpixphys.angSizedoubleFWHMxPSF's FWHM along the x-directionpixphys.angSizedoubleFWHMyPSF's FWHM along the y-directionpixphys.angSizedoubleSkySkyephot.mag.sbdoubleAirmassAirmassobs.airMassdoubleTexpExposure timestime.duration;obs.exposuredoubleJ/A+A/635/A6/phot4Light-curve No. 4 due to the HD 219134 c transitSkySkyephot.mag.sbdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date (UTC) (BJD-2450000)dtime.epochdoubleFluxNormalized fluxphot.flux;arith.ratiodoublee_FluxError on normalized fluxstat.error;phot.fluxdoublexposx locationpixpos.cartesian.xdoubleyposy locationpixpos.cartesian.ydoubleFWHMPSF's FHWMpixphys.angSizedoubleFWHMxPSF's FWHM along the x-directionpixphys.angSizedoubleFWHMyPSF's FWHM along the y-directionpixphys.angSizedoubleAirmassAirmassobs.airMassdoubleTexpExposure timestime.duration;obs.exposuredoubleJ/A+A/635/A6/rv1Radial velocity time-series of HD 219134recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date (UTC) (BJD-2450000)dtime.epochdoubleRVRadial velocitykm/sphys.veloc;pos.heliocentricdoublee_RVError on Radial velocitykm/sstat.errordoubleFWHMFWHM of the CCFkm/sphys.angSizedoubleContrastCCF's contrast%stat.fit.paramfloatBisectorBisector velocity spankm/sphys.velocdoublelogR'HKlogR'HKphot.flux;arith.ratiofloatTexpExposure timestime.duration;obs.exposureint