J/A+A/546/A90ivo://CDS.VizieR/J/A+A/546/A90doi:10.26093/cds/vizier.35460090CDSBergemann M.Hansen C.J.Bautista M.Ruchti G.CDS support team

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

cds-question@unistra.fratomic-physicsWe investigate the statistical equilibrium of neutral and singly-ionized strontium in late-type stellar atmospheres. Particular attention is given to the completeness of the model atom, which includes new energy levels, transition probabilities, photoionization and electron-impact excitation cross-sections computed with the R-matrix method. The NLTE model is applied to the analysis of SrI and SrII lines in the spectra of the Sun, Procyon, Arcturus, and HD 122563, showing a significant improvement in the ionization balance compared to LTE line formation calculations, which predict abundance discrepancies of up to 0.5dex. The solar Sr abundance is log(epsilon)=2.93+/-0.04dex, in agreement with the meteorites. We present the grid of NLTE abundance corrections for SrI and SrII lines that covers a wide range of stellar parameters. ************************************************************************** * * * The publication of the data will only be postponed until the * * accompanying paper is published * * * **************************************************************************2012A&A...546A..90Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/546/A90CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/546/A90https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/546/A90http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/546/A90https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/546/A90https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/546/A90http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/546/A90GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefault