J/MNRAS/418/863ivo://CDS.VizieR/J/MNRAS/418/863doi:10.26093/cds/vizier.74180863CDSMerle T.Thevenin F.Pichon B.Bigot L.2024-07-16T20:12:09Z2012-05-05T11:05:12ZCDS support team

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

cds-question@unistra.frlate-type-starsgiant-starssupergiant-starschemically-peculiar-starsline-intensitieschemical-abundancesatomic-physicsWe investigate NLTE effects for magnesium and calcium in the atmospheres of late-type giant and supergiant stars. The aim of this paper is to provide a grid of NLTE/LTE equivalent width ratios W/W* of Mg and Ca lines for the following range of stellar parameters: Teff in [3500,5250]K, log(g) in [0.5,2.0]dex and [Fe/H] in [-4.0,0.5]dex. We use realistic model atoms with the best physics available and taking into account the fine structure. The Mg and Ca lines of interest are in optical and near IR ranges. A special interest concerns the lines in the Gaia spectrograph (RVS) wavelength domain [847,874]nm. The NLTE corrections are provided as function of stellar parameters in an electronic table as well as in a polynomial form for the Gaia/RVS lines.2011MNRAS.418..863Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/418/863CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/418/863https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/418/863http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/418/863https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/418/863https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/418/863http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/418/863GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/MNRAS/418/863/gridGrid of Non-LTE corrections for Mg and Ca lines in the stellar parameter range T_eff_=[3500, 5250]K, log(g)=[0.5, 2.0], [Fe/H]=[-4.0,0.5] and [{alpha}/Fe]=[0.0,0.4]recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambdaSimbad column added by the CDS0.1nmem.wl;phys.atmol.transitionintnullableTeff[3500/5250] Effective temperatureKphys.temperature.effectiveintlogg[0.5/2] Surface gravitylog(cm.s**-2)phys.gravityfloat[Fe/H][-4/0.5] Metallicitylog(Sun)phys.abund.Zfloat[a/Fe][0/0.4] Enhancement of {alpha} elements (1)log(Sun)phys.abundfloatWNLTE equivalent width in Angstrom (2)0.1pmspect.line.eqWidthintW/W*NLTE/LTE equivalent width (3)meta.notefloatDelta? NLTE abundance correction (4)log(Sun)phys.abundfloatnullableIonSimbad column added by the CDSphys.atmol.elementcharn_lambdaSimbad column added by the CDSmeta.notechar