J/ApJS/256/41ivo://CDS.VizieR/J/ApJS/256/41doi:10.26093/cds/vizier.22560041CDSPacheco T.A.Diaz M.P.Levenhagen R.S.Coelho P.R.T.2021-12-03T12:47:54Z2021-10-05T14:05:39ZCDS support team

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

cds-question@unistra.frsubdwarf-starsastronomical-modelsspectroscopyA new grid of detailed atmosphere model spectra for hot and moderately cool subdwarf stars is presented. High-resolution spectra and synthetic photometry are calculated in the range from 1000{AA} to 10,000{AA} using Non-LTE fully line- blanketed atmosphere structures. Our grid covers eight temperatures within 10000<Teff[K]<65000, three surface gravities in the range 4.5<logg[cgs]<6.5, two helium abundances matching two extreme helium-rich and helium-poor scenarios, and two limiting metallicity boundaries regarding both solar ([Fe/H]=0) and Galactic halo ([Fe/H]=-1.5 and [alpha/Fe]=+0.4). Besides its application in the determination of fundamental parameters of subdwarfs in isolation and in binaries, the resulting database is also of interest for population synthesis procedures in a wide variety of stellar systems.2021ApJS..256...41Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/256/41CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/256/41https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/256/41http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/256/41https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/256/41https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/256/41http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/256/41GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/ApJS/256/41/listList of fits spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintspShow the spectrummeta.ref.urlcharFileNameName of the spectrum file in subdirectory spmeta.id;meta.filecharTeff[10000/65000] Effective temperatureKphys.temperature.effectiveintloggSurface gravity, +4.5, +5.5 or +6.5log(cm.s**-2)phys.gravityfloat[Fe/H]Metallicity (0 for solar abundance)phys.abund.Zfloat[alpha/Fe]? [alpha/Fe] abundancephys.abundfloatnullableHeHe-poor or He-rich (1)meta.notechar