J/A+A/666/A60ivo://CDS.VizieR/J/A+A/666/A60doi:10.26093/cds/vizier.36660060CDSKostogryz N.M.Witzke V.Shapiro A.I.Solanki S.K.Maxted P.F.L.,Kurucz R.L.Gizon L.2023-07-03T14:30:21Z2022-10-11T08:25:58ZCDS support team

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

cds-question@unistra.frastronomical-modelsstellar-atmospheresphotometryvisible-astronomyThe detection of the first exoplanet paved the way for the era of transit-photometry space missions with revolutionary photometric precision, whose aim is to discover new exoplanetary systems around different types of stars. With this high precision, it is possible to derive the radii of exoplanets very accurately, which is crucial for constraining their type and composition. However, it requires an accurate description of their host stars, especially their center-to-limb variation of intensities (so-called limb darkening) as it affects the planet-to-star radius ratio determination. We aim to improve the accuracy of limb-darkening calculations for stars with a wide range of fundamental parameters. We used the recently developed 1D Merged Parallelized Simplified ATLAS (MPS-ATLAS) code to compute model atmosphere structures and to synthesize stellar limb darkening on a very fine grid of stellar parameters. For the computations, we utilized the most accurate information on chemical element abundances and mixing-length parameters, including convective overshoot. The stellar limb darkening was fitted using the two most accurate limb darkening laws: the power-2 and 4-parameter nonlinear laws. We present a new extensive library of stellar model atmospheric structures, the synthesized stellar limb darkening curves, and the coefficients of parameterized limb-darkening laws on a very fine grid of stellar parameters in the Kepler, TESS, CHEOPS, and PLATO passbands. The fine grid allows the sizable errors, introduced by the need to interpolate, to be overcome. Our computations of solar limb darkening are in a good agreement with available solar measurements at different view angles and wavelengths. Our computations of stellar limb darkening agree well with available measurements of Kepler stars. A new grid of stellar model structures, limb darkening, and their fitted coefficients in different broad passbands are provided.2022A&A...666A..60Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/666/A60CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/666/A60https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/666/A60http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/666/A60https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/666/A60https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/666/A60http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/666/A60GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/666/A60/listList of the tables (table3 of the paper)SetGrid setmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFileNameName of the file, in subdirectory files (1)meta.id;meta.filecharTitleDescription of the tablemeta.notecharJ/A+A/666/A60/tablee3Set1 of stellar CLVs in different passbandsI(0.35)/I(1.0)Limb darkening at mu=0.35phot.limbDarkdoubleI(0.3)/I(1.0)Limb darkening at mu=0.3phot.limbDarkdoubleI(0.25)/I(1.0)Limb darkening at mu=0.25phot.limbDarkdoubleI(0.22)/I(1.0)Limb darkening at mu=0.22phot.limbDarkdoubleI(0.2)/I(1.0)Limb darkening at mu=0.2phot.limbDarkdoubleI(0.17)/I(1.0)Limb darkening at mu=0.17phot.limbDarkdoubleI(0.15)/I(1.0)Limb darkening at mu=0.15phot.limbDarkdoubleI(0.12)/I(1.0)Limb darkening at mu=0.12phot.limbDarkdoubleI(0.1)/I(1.0)Limb darkening at mu=0.1phot.limbDarkdoubleI(0.09)/I(1.0)Limb darkening at mu=0.09phot.limbDarkdoubleI(0.08)/I(1.0)Limb darkening at mu=0.08phot.limbDarkdoubleI(0.07)/I(1.0)Limb darkening at mu=0.07phot.limbDarkdoubleI(0.06)/I(1.0)Limb darkening at mu=0.06phot.limbDarkdoubleI(0.05)/I(1.0)Limb darkening at mu=0.05phot.limbDarkdoubleI(0.03)/I(1.0)Limb darkening at mu=0.03phot.limbDarkdoubleI(0.02)/I(1.0)Limb darkening at mu=0.02phot.limbDarkdoubleI(0.01)/I(1.0)Limb darkening at mu=0.01phot.limbDarkdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintM/H[-5.0/1.5] Metallicityphys.abund.ZfloatTeff[3500/9000] Effective temperatureKphys.temperature.effectiveintlogg[3.0/5.0] gravityphys.gravityfloatpassbandInstrumental passband (CHEOPS, Kepler, PLATO, TESS)instr.bandpasscharI(1.0)Disk center intensityspect.line.intensitydoubleI(0.9)/I(1.0)Limb darkening at mu=0.9phot.limbDarkdoubleI(0.8)/I(1.0)Limb darkening at mu=0.8phot.limbDarkdoubleI(0.7)/I(1.0)Limb darkening at mu=0.7phot.limbDarkdoubleI(0.6)/I(1.0)Limb darkening at mu=0.6phot.limbDarkdoubleI(0.5)/I(1.0)Limb darkening at mu=0.5phot.limbDarkdoubleI(0.4)/I(1.0)Limb darkening at mu=0.4phot.limbDarkdoubleJ/A+A/666/A60/tablee4Set2 of stellar CLVs in different passbandsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintM/H[-5.0/1.5] Metallicityphys.abund.ZfloatTeff[3500/9000] Effective temperatureKphys.temperature.effectiveintlogg[3.0/5.0] gravityphys.gravityfloatpassbandInstrumental passband (CHEOPS, Kepler, PLATO, TESS)instr.bandpasscharI(1.0)Disk center intensityspect.line.intensitydoubleI(0.9)/I(1.0)Limb darkening at mu=0.9phot.limbDarkdoubleI(0.8)/I(1.0)Limb darkening at mu=0.8phot.limbDarkdoubleI(0.7)/I(1.0)Limb darkening at mu=0.7phot.limbDarkdoubleI(0.6)/I(1.0)Limb darkening at mu=0.6phot.limbDarkdoubleI(0.5)/I(1.0)Limb darkening at mu=0.5phot.limbDarkdoubleI(0.17)/I(1.0)Limb darkening at mu=0.17phot.limbDarkdoubleI(0.15)/I(1.0)Limb darkening at mu=0.15phot.limbDarkdoubleI(0.12)/I(1.0)Limb darkening at mu=0.12phot.limbDarkdoubleI(0.1)/I(1.0)Limb darkening at mu=0.1phot.limbDarkdoubleI(0.09)/I(1.0)Limb darkening at mu=0.09phot.limbDarkdoubleI(0.08)/I(1.0)Limb darkening at mu=0.08phot.limbDarkdoubleI(0.07)/I(1.0)Limb darkening at mu=0.07phot.limbDarkdoubleI(0.06)/I(1.0)Limb darkening at mu=0.06phot.limbDarkdoubleI(0.05)/I(1.0)Limb darkening at mu=0.05phot.limbDarkdoubleI(0.03)/I(1.0)Limb darkening at mu=0.03phot.limbDarkdoubleI(0.02)/I(1.0)Limb darkening at mu=0.02phot.limbDarkdoubleI(0.01)/I(1.0)Limb darkening at mu=0.01phot.limbDarkdoubleI(0.4)/I(1.0)Limb darkening at mu=0.4phot.limbDarkdoubleI(0.35)/I(1.0)Limb darkening at mu=0.35phot.limbDarkdoubleI(0.3)/I(1.0)Limb darkening at mu=0.3phot.limbDarkdoubleI(0.25)/I(1.0)Limb darkening at mu=0.25phot.limbDarkdoubleI(0.22)/I(1.0)Limb darkening at mu=0.22phot.limbDarkdoubleI(0.2)/I(1.0)Limb darkening at mu=0.2phot.limbDarkdoubleJ/A+A/666/A60/tablee5Set1 of stellar limb darkening coefficientsM/H[-5.0/1.5] Metallicityphys.abund.ZfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTeff[3500/9000] Effective temperatureKphys.temperature.effectiveintlogg[3.0/5.0] gravitylog(cm.s**-1)phys.gravityfloatpassbandInstrumental passband (CHEOPS, Kepler, PLATO, TESS)instr.bandpasscharccoefficient of power-2 limb darkening lawphot.limbDarkdoublealphacoefficient of power-2 limb darkening lawphot.limbDarkdoublea1coefficient of 4-coefficients limb darkening lawphot.limbDarkdoublea2coefficient of 4-coefficients limb darkening lawphot.limbDarkdoublea3coefficient of 4-coefficients limb darkening lawphot.limbDarkdoublea4coefficient of 4-coefficients limb darkening lawphot.limbDarkdoubleJ/A+A/666/A60/tablee6Set1 of stellar limb darkening coefficientsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintM/H[-5.0/1.5] Metallicityphys.abund.ZfloatTeff[3500/9000] Effective temperatureKphys.temperature.effectiveintlogg[3.0/5.0] gravitylog(cm.s**-1)phys.gravityfloatpassbandInstrumental passband (CHEOPS, Kepler, PLATO, TESS)instr.bandpasscharccoefficient of power-2 limb darkening lawphot.limbDarkdoublealphacoefficient of power-2 limb darkening lawphot.limbDarkdoublea1coefficient of 4-coefficients limb darkening lawphot.limbDarkdoublea2coefficient of 4-coefficients limb darkening lawphot.limbDarkdoublea3coefficient of 4-coefficients limb darkening lawphot.limbDarkdoublea4coefficient of 4-coefficients limb darkening lawphot.limbDarkdouble