J/A+A/404/661ivo://CDS.VizieR/J/A+A/404/661doi:10.26093/cds/vizier.34040661CDSBarbuy B.Perrin M.-N.Katz D.Coelho P.Cayrel R.Spite M.,van't Veer Menneret C.2003-07-12T07:56:09Z2003-07-12T07:55:41ZCDS support team

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

cds-question@unistra.frastronomical-modelsstellar-atmosphereschemically-peculiar-starsWe have computed a grid of synthetic spectra in the wavelength range {lambda}{lambda}4600-5600{AA} using revised model atmospheres, for a range of atmospheric parameters and values of [alpha-elements/Fe]=0.0 and +0.4. The Lick indices Fe5270, Fe5335, Mgb and Mg_2_ are measured on the grid spectra, for FWHM=2 to 8.3{AA}. Relations between the indices Fe5270, Fe5335 and Mg_2_ and stellar parameters effective temperature T_eff_, logg, [Fe/H] and [alpha/Fe], valid in the range 4000K>=T_eff_>=7000K, are presented. These fitting functions are given for FWHM=3.5 and 8.3{AA}. The indices were also measured for a list of 97 reference stars with well-known stellar parameters observed at ESO and OHP, and these are compared to the computed indices. Finally, a comparison of the indices measured on the observed spectra and those derived from the fitting functions based on synthetic spectra is presented.2003A&A...404..661Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/404/661CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/404/661https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/404/661http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/404/661https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/404/661https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/404/661http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/404/661GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/404/661/stars (Star positions and magnitudes (from Simbad))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/404/661/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/404/661/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/404/661/stars?GETtext/xml+votable180.050000true5.525-72.1302780.0055555555555555566/373 4298 4506 4820 5009 5442 5589 5621 5929 6051 6058 6256 7384 7456 7710 7767 8278 8873 9065 9476 10266 10407 10476 10926 11197 11394 11412 11512 12943 13025 13301 14534 15174 16115 18561 23527 23535 23545 23548 24942 25051 25444 25793 26347 26366 26457 26538 27091 27975 28336 28605 28664 29548 30339 30577 30939 31683 31757 33321 33323 35647 36846 44542 44816 47125 47168https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/404/661?format=asciidefaultJ/A+A/404/661/tablea3Fitting function coefficients for Fe5335(1994) computed with FWHM = 8.3{AA}, valid for -3<[Fe/H]<0.3 (exponential form)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIonIon designation (Fe5270 or Fe5335)phys.atmol.ionizationcharFWHMFWHM0.1nmspect.line.widthfloat[Fe/H]infLower value of validity interval of metallicitylog(Sun)phys.abund.Fefloat[Fe/H]supUpper value of validity interval of metallicitylog(Sun)phys.abund.FefloatCoeffCoefficient symbolmeta.id;stat.fit.paramcharn_CoeffDescription of the termsmeta.noteValue1Coefficients (exponential form) valid in the range 4000<=T<=7000, 0<=logg<3.0, -3.0<=[Fe/H]<=0.3stat.fit.paramfloatValue2Coefficients (exponential form) valid in the range 4000<=T<=4500, 3.0<=logg<=5.0, -3.0<=[Fe/H]<=0.3stat.fit.paramdoubleValue3Coefficients (exponential form) valid in the range 4500<T<6250, 3.0<=logg<=5.0 -3.0<=[Fe/H]<=0.3stat.fit.paramdoubleValue4Coefficients (exponential form) valid in the range 6250<=T<=7000, 3.0<=logg<=5.0, -3.0<=[Fe/H]<=0.3stat.fit.paramdoubleJ/A+A/404/661/tablea4Fitting function coefficients for Mg2(1994) computed with FWHM = 3.5{AA}, valid for -2.5<[Fe/H]<0.3recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIonIon designation (Mg2)phys.atmol.ionizationcharFWHMFWHM0.1nmspect.line.widthfloat[Fe/H]infLower value of validity interval of metallicitylog(Sun)phys.abund.Fefloat[Fe/H]supUpper value of validity interval of metallicitylog(Sun)phys.abund.FefloatCoeffCoefficient symbolmeta.id;stat.fit.paramcharn_CoeffDescription of the termsmeta.noteValue1Coefficients valid in the range 4000<T<5000, 0<logg<2.5, -2.5<=[Fe/H]<=0.3, no exponential formstat.fit.paramfloatValue2Coefficients (exponential form) valid in the range 5000<T<7000, 0<=logg<=2.5, -2.5<=[Fe/H]<=0.3stat.fit.paramdoubleValue3Coefficients valid in the range 4000<T<5000, 2.5<logg<5.0, -2.5<=[Fe/H]<=0.3, no exponentialstat.fit.paramdoubleValue4Coefficients (exponential form) valid in the range 5000<T<7000, 2.5<logg<5.0, -2.5<=[Fe/H]<=0.3stat.fit.paramdoubleJ/A+A/404/661/tablea5Fitting function coefficients for Fe5270(1994) computed with FWHM = 3.5{AA}, valid for -3<[Fe/H]<0.3 (exponential form)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIonIon designation (Fe5270 or Fe5335)phys.atmol.ionizationcharFWHMFWHM0.1nmspect.line.widthfloat[Fe/H]infLower value of validity interval of metallicitylog(Sun)phys.abund.Fefloat[Fe/H]supUpper value of validity interval of metallicitylog(Sun)phys.abund.FefloatCoeffCoefficient symbolmeta.id;stat.fit.paramcharn_CoeffDescription of the termsmeta.noteValue1Coefficients (exponential form) valid in the range 4000<=T<=7000, 0<=logg<3.0, -3.0<=[Fe/H]<=0.3stat.fit.paramfloatValue2Coefficients (exponential form) valid in the range 4000<=T<=4500, 3.0<=logg<=5.0, -3.0<=[Fe/H]<=0.3stat.fit.paramdoubleValue3Coefficients (exponential form) valid in the range 4500<T<6250, 3.0<=logg<=5.0 -3.0<=[Fe/H]<=0.3stat.fit.paramdoubleValue4Coefficients (exponential form) valid in the range 6250<=T<=7000, 3.0<=logg<=5.0, -3.0<=[Fe/H]<=0.3stat.fit.paramdoubleJ/A+A/404/661/tablea6Fitting function coefficients for Fe5335(1994) computed with FWHM = 3.5{AA}, valid for -3<[Fe/H]<0.3 (exponential form)CoeffCoefficient symbolmeta.id;stat.fit.paramcharFWHMFWHM0.1nmspect.line.widthfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIonIon designation (Fe5270 or Fe5335)phys.atmol.ionizationchar[Fe/H]infLower value of validity interval of metallicitylog(Sun)phys.abund.Fefloat[Fe/H]supUpper value of validity interval of metallicitylog(Sun)phys.abund.Fefloatn_CoeffDescription of the termsmeta.noteValue1Coefficients (exponential form) valid in the range 4000<=T<=7000, 0<=logg<3.0, -3.0<=[Fe/H]<=0.3stat.fit.paramfloatValue2Coefficients (exponential form) valid in the range 4000<=T<=4500, 3.0<=logg<=5.0, -3.0<=[Fe/H]<=0.3stat.fit.paramdoubleValue3Coefficients (exponential form) valid in the range 4500<T<6250, 3.0<=logg<=5.0 -3.0<=[Fe/H]<=0.3stat.fit.paramdoubleValue4Coefficients (exponential form) valid in the range 6250<=T<=7000, 3.0<=logg<=5.0, -3.0<=[Fe/H]<=0.3stat.fit.paramdoubleJ/A+A/404/661/tablea7Calibration constants to the fitting functionsIonIonphys.atmol.ionizationcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCalLickCalibration constant to Lick system (FWHM=8.3{AA})phot.calib;arith.zpfloatCalFluxCalibration constant to flux calibrated data at FWHM=3.5{AA}phot.calib;arith.zpfloatJ/A+A/404/661/tableb1Reference stars observed at a resolution of FWHM approx 3.0{AA} at the OHP, from Cayrel et al. (1991A&A...247..108C) and Perrin et al. (1995A&A...298..107P)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar name (1)meta.id;meta.maincharVmagV magnitudemagphot.mag;em.opt.VfloatB-V? B-V colour index (not in tableb3.dat)magphot.color;em.opt.B;em.opt.VfloatnullableTeffEffective temperatureKphys.temperature.effectiveintloggGravitylog(cm.s**-2)phys.gravityfloat[Fe/H]Metallicitylog(Sun)phys.abund.FefloatFe5270-1Measured Fe5270 index (1984 definition)magspect.indexfloatFe5270-2Measured Fe5270 index (1994 definition)magspect.indexfloatFe5335-1Measured Fe5335 index (1984 definition)magspect.indexfloatFe5335-2Measured Fe5335 index (1994 definition)magspect.indexfloatMgb-1Measured Mgb index (1984 definition)magspect.indexfloatMgb-2Measured Mgb index (1994 definition)magspect.indexfloatMg2-1? Measured Mg2 index (1984 definition)magspect.indexfloatnullableMg2-2? Measured Mg2 index (1994 definition)magspect.indexfloatnullableJ/A+A/404/661/tableb2Reference stars observed at a resolution of FWHM approx 4.7{AA} at ESO, form Cayrel et al. (1991A&A...247..108C) and Perrin et al. (1995A&A...298..107P)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar name (1)meta.id;meta.maincharVmagV magnitudemagphot.mag;em.opt.VfloatB-V? B-V colour index (not in tableb3.dat)magphot.color;em.opt.B;em.opt.VfloatnullableTeffEffective temperatureKphys.temperature.effectiveintloggGravitylog(cm.s**-2)phys.gravityfloat[Fe/H]Metallicitylog(Sun)phys.abund.FefloatFe5270-1Measured Fe5270 index (1984 definition)magspect.indexfloatFe5270-2Measured Fe5270 index (1994 definition)magspect.indexfloatFe5335-1Measured Fe5335 index (1984 definition)magspect.indexfloatFe5335-2Measured Fe5335 index (1994 definition)magspect.indexfloatMgb-1Measured Mgb index (1984 definition)magspect.indexfloatMgb-2Measured Mgb index (1994 definition)magspect.indexfloatMg2-1? Measured Mg2 index (1984 definition)magspect.indexfloatnullableMg2-2? Measured Mg2 index (1994 definition)magspect.indexfloatnullableJ/A+A/404/661/tableb3Reference stars observed at a resolution of FWHM approx 3.5{AA}at the OHP in 1995-1997 (Katz, 2000, Ph.D. Thesis, Universite de Paris VII)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar name (1)meta.id;meta.maincharVmagV magnitudemagphot.mag;em.opt.VfloatB-V? B-V colour index (not in tableb3.dat)magphot.color;em.opt.B;em.opt.VfloatnullableTeffEffective temperatureKphys.temperature.effectiveintloggGravitylog(cm.s**-2)phys.gravityfloat[Fe/H]Metallicitylog(Sun)phys.abund.FefloatFe5270-1Measured Fe5270 index (1984 definition)magspect.indexfloatFe5270-2Measured Fe5270 index (1994 definition)magspect.indexfloatFe5335-1Measured Fe5335 index (1984 definition)magspect.indexfloatFe5335-2Measured Fe5335 index (1994 definition)magspect.indexfloatMgb-1Measured Mgb index (1984 definition)magspect.indexfloatMgb-2Measured Mgb index (1994 definition)magspect.indexfloatMg2-1? Measured Mg2 index (1984 definition)magspect.indexfloatnullableMg2-2? Measured Mg2 index (1994 definition)magspect.indexfloatnullableJ/A+A/404/661/starsStar positions and magnitudes (from Simbad)Bmag? B magnitudemagphot.mag;em.opt.BfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject namemeta.id;meta.maincharprimarySNameSimbad namemeta.idcharRAJ2000? Right ascension (J2000.0)pos.eq.ra;meta.mainnullableDEJ2000? Declination (J2000.0)pos.eq.dec;meta.mainnullableVmag? V magnitudemagphot.mag;em.opt.VfloatnullableSpTypeSpectral typesrc.spTypecharSimbadask the SIMBAD data-base about this objectmeta.refcharJ/A+A/404/661/tablea1Fitting function coefficients for Mg2(1994), computed with FWHM = 8.3{AA}, valid for -2.5<[Fe/H]<0.3recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIonIon designation (Mg2)phys.atmol.ionizationcharFWHMFWHM0.1nmspect.line.widthfloat[Fe/H]infLower value of validity interval of metallicitylog(Sun)phys.abund.Fefloat[Fe/H]supUpper value of validity interval of metallicitylog(Sun)phys.abund.FefloatCoeffCoefficient symbolmeta.id;stat.fit.paramcharn_CoeffDescription of the termsmeta.noteValue1Coefficients valid in the range 4000<T<5000, 0<logg<2.5, -2.5<=[Fe/H]<=0.3, no exponential formstat.fit.paramfloatValue2Coefficients (exponential form) valid in the range 5000<T<7000, 0<=logg<=2.5, -2.5<=[Fe/H]<=0.3stat.fit.paramdoubleValue3Coefficients valid in the range 4000<T<5000, 2.5<logg<5.0, -2.5<=[Fe/H]<=0.3, no exponentialstat.fit.paramdoubleValue4Coefficients (exponential form) valid in the range 5000<T<7000, 2.5<logg<5.0, -2.5<=[Fe/H]<=0.3stat.fit.paramdoubleJ/A+A/404/661/tablea2Fitting function coefficients for Fe5270(1994) computed with FWHM = 8.3{AA}, valid for -3<[Fe/H]<0.3 (exponential form)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIonIon designation (Fe5270 or Fe5335)phys.atmol.ionizationcharFWHMFWHM0.1nmspect.line.widthfloat[Fe/H]infLower value of validity interval of metallicitylog(Sun)phys.abund.Fefloat[Fe/H]supUpper value of validity interval of metallicitylog(Sun)phys.abund.FefloatCoeffCoefficient symbolmeta.id;stat.fit.paramcharn_CoeffDescription of the termsmeta.noteValue1Coefficients (exponential form) valid in the range 4000<=T<=7000, 0<=logg<3.0, -3.0<=[Fe/H]<=0.3stat.fit.paramfloatValue2Coefficients (exponential form) valid in the range 4000<=T<=4500, 3.0<=logg<=5.0, -3.0<=[Fe/H]<=0.3stat.fit.paramdoubleValue3Coefficients (exponential form) valid in the range 4500<T<6250, 3.0<=logg<=5.0 -3.0<=[Fe/H]<=0.3stat.fit.paramdoubleValue4Coefficients (exponential form) valid in the range 6250<=T<=7000, 3.0<=logg<=5.0, -3.0<=[Fe/H]<=0.3stat.fit.paramdouble