J/other/RNAAS/5.ivo://CDS.VizieR/J/other/RNAAS/5.13CDSClaret A.2022-05-18T13:55:31Z2022-01-17T13:42:25ZCDS support team

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

cds-question@unistra.frastronomical-modelsstellar-atmospheresphotometryThe goal of this Research Note is to provide the theoretical calculations of the limb-darkening coefficients (LDC) and gravity-darkening coefficients (GDC) for the space mission CHEOPS. We use two stellar atmosphere models: ATLAS (plane-parallel) and PHOENIX with spherical symmetry covering a wide range of effective temperatures, local gravities, and hydrogen/metal. These grids cover 19 metallicities ranging from 10^-5^ up to 10^+1^ solar abundances, 0<=logg<=6.0 and 2300K<=Te<=50000K. The specific intensity distribution was fitted using six approaches: linear, quadratic, square root, logarithmic, power-2, and a series with four terms. The calculations of the gravity darkening coefficient were performed for both stellar atmosphere models adopting an improved formulation.2021RNAAS...5...13Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/RNAAS/5.13CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/RNAAS/5.13https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/RNAAS/5.13http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/RNAAS/5.13https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/RNAAS/5.13https://vizier.iucaa.in/viz-bin/votable?-source=J/other/RNAAS/5.13http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/RNAAS/5.13GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/other/RNAAS/5.13/table1u linear limb darkening coefficients PHOENIX-COND models v.tu=2.0 km/s for CHEOPS (LSM)loggSurface gravitylog(cm.s**-2)phys.gravityfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTeffEffective temperatureKphys.temperature.effectivefloatZRlog10 [metal/H]phys.abund.Zfloatulinear limb darkening coefficient (CHEOPS)phot.limbDarkdoublemu-cri{mu}_cri_ (CHEOPS)stat.fit.paramdoublechi2chi2stat.fit.chi2doubleJ/other/RNAAS/5.13/table2a,b quadratic limb darkening coefficients PHOENIX-COND models, v.tu=2.0 km/s for CHEOPS (LSM)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintloggSurface gravitylog(cm.s**-2)phys.gravityfloatTeffEffective temperatureKphys.temperature.effectivefloatZRlog10 [metal/H]phys.abund.Zfloataquadrat limb darkening coefficient (CHEOPS)phot.limbDarkdoublebquadrat limb darkening coefficient (CHEOPS)phot.limbDarkdoublemu-cri{mu}_cri_ (CHEOPS)stat.fit.paramdoublechi2chi2stat.fit.chi2doubleJ/other/RNAAS/5.13/table3c,d square-root limb darkening coefficients PHOENIX-COND models v.tu=2 km/s for CHEOPS (LSM)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintloggSurface gravitylog(cm.s**-2)phys.gravityfloatTeffEffective temperatureKphys.temperature.effectivefloatZRlog10 [metal/H]phys.abund.Zfloatcsqrt limb darkening coefficient (CHEOPS)phot.limbDarkdoubledsqrt limb darkening coefficient (CHEOPS)phot.limbDarkdoublemu-cri{mu}_cri_ (CHEOPS)stat.fit.paramdoublechi2chi2stat.fit.chi2doubleJ/other/RNAAS/5.13/table4e,f logarithmic limb darkening coefficients PHOENIX-COND models v.tu=2.0 km/s for CHEOPS (LSM)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintloggSurface gravitylog(cm.s**-2)phys.gravityfloatTeffEffective temperatureKphys.temperature.effectivefloatZRlog10 [metal/H]phys.abund.Zfloateloga limb darkening coefficient (CHEOPS)phot.limbDarkdoublefloga limb darkening coefficient (CHEOPS)phot.limbDarkdoublemu-cri{mu}_cri_ (CHEOPS)stat.fit.paramdoublechi2chi2stat.fit.chi2doubleJ/other/RNAAS/5.13/table5g,h power-2 limb darkening coefficients PHOENIX-COND models v.tu=2.0 km/s for CHEOPS (LSM)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintloggSurface gravitylog(cm.s**-2)phys.gravityfloatTeffEffective temperatureKphys.temperature.effectivefloatZRlog10 [metal/H]phys.abund.Zfloatgpower-2 limb darkening coefficient (CHEOPS)phot.limbDarkdoublehpower-2 limb darkening coefficient (CHEOPS)phot.limbDarkdoublemu-cri{mu}_cri_ (CHEOPS)stat.fit.paramdoublechi2chi2stat.fit.chi2doubleJ/other/RNAAS/5.13/table6a_1,a_2,a_3,a_4 limb darkening coefficients PHOENIX-COND models v.tu=2.0 km/s for CHEOPS (LSM)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintloggSurface gravitylog(cm.s**-2)phys.gravityfloatTeffEffective temperatureKphys.temperature.effectivefloatZRlog10 [metal/H]phys.abund.Zfloata14-terms limb darkening coefficient (CHEOPS)phot.limbDarkdoublea24-terms limb darkening coefficient (CHEOPS)phot.limbDarkdoublea34-terms limb darkening coefficient (CHEOPS)phot.limbDarkdoublea44-terms limb darkening coefficient (CHEOPS)phot.limbDarkdoublemu-cri{mu}_cri_ (CHEOPS)stat.fit.paramdoublechi2chi2stat.fit.chi2doubleJ/other/RNAAS/5.13/table7u linear limb darkening coefficients ATLAS models, all metallicities, v.tu=2,0,1,4,8 km/s for CHEOPS (LSM)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintloggSurface gravitylog(cm.s**-2)phys.gravityfloatTeffEffective temperatureKphys.temperature.effectivefloatZRlog [metal/H]phys.abund.ZfloatVelmicroturbulent velocitykm/sphys.velocfloatulinear limb darkening coefficient (CHEOPS)phot.limbDarkdoublechi2chi2stat.fit.chi2doubleJ/other/RNAAS/5.13/table8a,b quadratic limb darkening coefficients ATLAS models, all metallicities, v.tu=2,0,1,4,8 km/s for CHEOPS (LSM)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintloggSurface gravitylog(cm.s**-2)phys.gravityfloatTeffEffective temperatureKphys.temperature.effectivefloatZRlog [metal/H]phys.abund.ZfloatVelmicroturbulent velocitykm/sphys.velocfloataquadrat limb darkening coefficient (CHEOPS)phot.limbDarkdoublebquadrat limb darkening coefficient (CHEOPS)phot.limbDarkdoublechi2chi2stat.fit.chi2doubleJ/other/RNAAS/5.13/table9c,d square-root limb darkening coefficients ATLAS models, all metallicities, v.tu=2,0,1,4,8 km/s for CHEOPS (LSM)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintloggSurface gravitylog(cm.s**-2)phys.gravityfloatTeffEffective temperatureKphys.temperature.effectivefloatZRlog [metal/H]phys.abund.ZfloatVelmicroturbulent velocitykm/sphys.velocfloatcsqrt limb darkening coefficient (CHEOPS)phot.limbDarkdoubledsqrt limb darkening coefficient (CHEOPS)phot.limbDarkdoublechi2chi2stat.fit.chi2doubleJ/other/RNAAS/5.13/table10e,f logarithmic limb darkening coefficients ATLAS models, all metallicities, v.tu=2,0,1,4,8 km/s for CHEOPS (LSM)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintloggSurface gravitylog(cm.s**-2)phys.gravityfloatTeffEffective temperatureKphys.temperature.effectivefloatZRlog [metal/H]phys.abund.ZfloatVelmicroturbulent velocitykm/sphys.velocfloateloga limb darkening coefficient (CHEOPS)phot.limbDarkdoublefloga limb darkening coefficient LDC (CHEOPS)phot.limbDarkdoublechi2chi2stat.fit.chi2doubleJ/other/RNAAS/5.13/table11g,h power-2 limb darkening coefficients ATLAS models, all metallicities, v.tu=2,0,1,4,8 km/s for CHEOPS (LSM)Velmicroturbulent velocitykm/sphys.velocfloatgpower-2 limb darkening coefficient (CHEOPS)phot.limbDarkdoublehpower-2 limb darkening coefficient (CHEOPS)phot.limbDarkdoublechi2chi2stat.fit.chi2doublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintloggSurface gravitylog(cm.s**-2)phys.gravityfloatTeffEffective temperatureKphys.temperature.effectivefloatZRlog [metal/H]phys.abund.ZfloatJ/other/RNAAS/5.13/table12a_1,a_2,a_3,a_4 limb darkening coefficients ATLAS models, all metallicities, v.tu=2,0,1,4,8 km/s for CHEOPS (LSM)chi2chi2stat.fit.chi2doublea44-terms limb darkening coefficient (CHEOPS)phot.limbDarkdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintloggSurface gravitylog(cm.s**-2)phys.gravityfloatTeffEffective temperatureKphys.temperature.effectivefloatZRlog [metal/H]phys.abund.ZfloatVelmicroturbulent velocitykm/sphys.velocfloata14-terms limb darkening coefficient (CHEOPS)phot.limbDarkdoublea24-terms limb darkening coefficient(CHEOPS)phot.limbDarkdoublea34-terms limb darkening coefficient (CHEOPS)phot.limbDarkdoubleJ/other/RNAAS/5.13/table13y1,y2 gravity darkening coefficients PHOENIX-COND models, v.tu=2.0 km/s for CHEOPSrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintloggLog10 Surface gravitylog(cm.s**-2)phys.gravityfloatTeffEffective temperatureKphys.temperature.effectivedoubleZRlog10 [metal/H]phys.abund.Zdoubley1gravity darkening coefficient (CHEOPS)phot.limbDarkdoubley2gravity darkening coefficient (CHEOPS)phot.limbDarkdoubleJ/other/RNAAS/5.13/table14y1,y2 gravity darkening coefficients ATLAS models, all metallicities, v.tu=2,0,1,4,8 km/s for CHEOPSrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintZRlog10 [metal/H]phys.abund.ZfloatVelmicroturbulent velocitykm/sphys.velocfloatlogglog10 Surface gravitylog(cm.s**-2)phys.gravityfloatlogTefflog10 Effective temperaturelog(K)phys.temperature.effectivefloaty1gravity darkening coefficient (CHEOPS)phot.limbDarkfloaty2gravity darkening coefficient (CHEOPS)phot.limbDarkfloat