J/ApJ/657/1046ivo://CDS.VizieR/J/ApJ/657/1046doi:10.26093/cds/vizier.16571046CDSChavez M.Bertone E.Buzzoni A.Franchini M.Malagnini M.L.,Morossi C.Rodriguez-Merino L.H.2018-02-12T08:45:34Z2009-04-14T10:31:11ZCDS support team

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

cds-question@unistra.frstar-atlasesultraviolet-astronomyUsing the UVBLUE library of synthetic stellar spectra we have computed a set of mid-UV line and continuum spectroscopic indices. We explore their behavior in terms of the leading stellar parameters (Teff, logg). The overall result is that synthetic indices follow the general trends depicted by those computed from empirical databases. Separately we also examine the index sensitivity to changes in chemical composition, an analysis only feasible under a theoretical approach. In this respect, lines indices FeI 3000, BL 3096, and MgI 2852 and the continuum index 2828/2921 are the least sensitive features, an important characteristic to be taken into account for the analyses of integrated spectra of stellar systems.2007ApJ...657.1046Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/657/1046CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/657/1046https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/657/1046http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/657/1046https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/657/1046https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/657/1046http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/657/1046GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapUVdefaultJ/ApJ/657/1046/table1Definition of the bands for line and continuum indicesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLabelIndex labelmeta.id;meta.maincharNameIndex namemeta.idcharblueBBlue bandpass0.1nminstr.bandwidthcharindBIndex bandpass0.1nminstr.bandwidthcharredBRed bandpass0.1nminstr.bandwidthcharSpeciesMain speciesphys.atmol.elementcharJ/ApJ/657/1046/table2Synthetic UVBLUE indices after degrading the SEDs at 6 Angstroms FWHMrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTeffEffective TemperatureKphys.temperature.effectiveintlog(g)Log of surface gravitylog(cm.s**-2)phys.gravityfloat[M/H]Metallicitylog(Sun)phys.abund.ZfloatFe2332The FeII 2332 index (1)magspect.indexdoubleFe2402The FeII 2402 index (1)magspect.indexdoubleBL2538The BL 2538 index (1)magspect.indexdoubleFe2609The FeII 2609 index (1)magspect.indexdoubleBL2720The BL 2720 index (1)magspect.indexdoubleBL2740The BL 2740 index (1)magspect.indexdoubleMg2800The MgII 2800 index (1)magspect.indexdoubleMg2852The MgI 2852 index (1)magspect.indexdoubleMgWideThe Mg Wide index (1)magspect.indexdoubleFe3000The FeI 3000 index (1)magspect.indexdoubleBL3096The BL 3096 index (1)magspect.indexdouble2110/2570The 2110/2570 index (1)magspect.indexdouble2600-3000The 2600-3000 index (1)magspect.indexdouble2609/2660The 2609/2660 index (1)magspect.indexdouble2828/2921The 2828/2921 index (1)magspect.indexdoubleS2850The S2850 index (1)magspect.indexdoubleS2850LThe S2850 L index (1)magspect.indexdouble