J/A+A/699/A97ivo://CDS.VizieR/J/A+A/699/A97doi:10.26093/cds/vizier/bc-nv/ljhCDSClaretA.HauschildtP.H.TorresG.2026-08-03T06:56:05Z2025-07-04T08:05:28ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsmultiple-starsastronomical-modelsstellar-atmospheresinfrared-photometryinfrared-astronomyspectroscopyModeling observations of transiting exoplanets or close binary systems by comparing the observations with theoretical light curves requires precise knowledge of the distribution of specific intensities across the stellar disk. We aim to facilitate this type of research by providing extensive tabulations of limb-darkening coefficients for 11 frequently used near- and mid-infrared passbands on the NIRCam, NIRISS, and NIRSpec instruments installed on board the James Webb Space Telescope. The calculation of the limb-darkening coefficients was based on spherically symmetric atmosphere models from the PHOENIX series, with high spectral resolution (approximately one million wavelengths), and covering the wavelength range 0.1-6.0 microns. The models were computed for solar composition, and a microturbulent velocity of 1.0km/s. We adopted two of the more accurate parametrizations for the coefficients: the 4-term law, and the power-2 law. We applied the Levenberg-Marquardt least-squares minimization method, with a strategy to determine the critical value mu_crit_ of the cosine of the viewing angle near the limb that is designed to improve numerical accuracy. The limb-darkening coefficients were derived based on a total of 306 atmosphere models covering an effective temperature range of 2400-7800K, and a log g interval between 3.0 and 5.5. We discuss the quality of the fits to the specific intensities provided by the power-2 and 4-term laws, as well as by the often used quadratic law. Based on a comparison, we recommend the use of the 4-term or power-2 laws, in that order of preference.2025A&A...699A..97Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/699/A97CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+AS/114/247 : Limb-darkening coefficients for R I J H K (Claret+, 1995)J/A+A/335/647 : Limb-darkening coefficients for ubvyUBVRIJHK (Claret 1998)J/A+A/401/657 : Non-linear limb-darkening law for LTE models. II.J/A+A/428/1001 : Non-linear limb-darkening law for LTE models. III.J/A+A/529/A75 : Limb-darkening coefficients (Claret+, 2011)J/A+A/546/A14 : Limb-darkening for CoRoT, Kepler, Spitzer (Claret+, 2012)J/A+A/552/A16 : Limb-darkening for CoRoT, Kepler, Spitzer. II. (Claret+, 2013)J/A+A/600/A30 : Limb-darkening for TESS satellite (Claret, 2017)J/A+A/618/A20 : Limb-darkening for TESS, Kepler, Corot, MOST (Claret, 2018)J/A+A/634/A93 : Limb-darkening coefficients for compact stars (Claret+, 2020)J/A+A/641/A157 : Limb-darkening coefficients for white dwarfs (Claret+, 2020)J/A+A/674/A63 : Power-2 limb-darkening coefficients for JWST (Claret+, 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/699/A97https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/699/A97http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/699/A97https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/699/A97https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/699/A97http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/699/A97GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapInfrareddefaultJ/A+A/699/A97/table2Limb-darkening coefficients for the 4-term lawrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintloggLog surface gravitylog(cm.s**-2)phys.gravityfloatTeffEffective temperatureKphys.temperature.effectiveintFilterName of filter (G1)meta.id;instr.filterchara1Coefficient a1 of 4-term law (2)phot.limbDarkdoublea2Coefficient a2 of 4-term law (2)phot.limbDarkdoublea3Coefficient a3 of 4-term law (2)phot.limbDarkdoublea4Coefficient a4 of 4-term law (2)phot.limbDarkdoublemucritCritical value of mustat.fit.paramdoublechi2Chi-squared value (G3)stat.fit.chi2doubleJ/A+A/699/A97/table3Limb-darkening coefficients for the power-2 law (corrected version, 10-Jul-2025)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintloggLog surface gravitylog(cm.s**-2)phys.gravityfloatTeffEffective temperatureKphys.temperature.effectiveintFilterName of filter (G1)meta.id;instr.filtercharg? Coefficient g of power-2 law (2)phot.limbDarkdoublenullablehCoefficient h of power-2 law (2)phot.limbDarkdoublemucritCritical value of mustat.fit.paramdoublechi2Chi-squared value (G3)stat.fit.chi2double