J/A+A/463/455ivo://CDS.VizieR/J/A+A/463/455doi:10.26093/cds/vizier.34630455CDSAnnibali F.Bressan A.Rampazzo R.Zeilinger W.W.Danese L.2017-11-28T13:21:34Z2007-02-23T07:55:32ZCDS support team

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

cds-question@unistra.frgalaxieschemical-abundancesstellar-evolutionary-modelsThe paper is devoted to the study of the underlying stellar population of a sample of 62 nearby early-type galaxies, predominantly located in low density environments, a large fraction of which showing emission lines. Ages, metallicities and [{alpha}/Fe] ratios have been derived through the comparison of Lick indices measured at different galacto-centric distances (7 apertures and 4 gradients) with new Simple Stellar Population (SSP) models which account for the presence of alpha/Fe-enhancement. The SSPs cover a wide range of ages (10^8^-16x10^9^yr), metallicities (0.0004<=Z<=0.05) and [{alpha}/Fe] ratios (0-0.8). To derive the stellar population parameters we use an algorithm that provides, together with the most likely solution in the (age, Z, [{alpha}/Fe]) space, also the probability density function along the age-metallicity degeneracy. We derive a large spread in age, with SSP-equivalent ages ranging from a few to 15Gyrs. Age does not show any significant trend with central velocity dispersion sigma_c_ but E galaxies appear on average older than lenticulars.2007A&A...463..455Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/463/455CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/433/497 : Nearby early-type gal. with ionized gas. I. (Rampazzo+, 2005)J/A+A/445/79 : Nearby early-type gal. with ionized gas. II. (Annibali+, 2006)J/A+A/519/A40 : Nearby early-type gal. with ionized gas. IV (Annibali+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/463/455https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/463/455http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/463/455https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/463/455https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/463/455http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/463/455GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/463/455/galaxies (Galaxy positions (From Simbad))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/463/455/galaxies?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/463/455/galaxies?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/463/455/galaxies?GETtext/xml+votable180.050000true7.3129172.8641670.0055555555555555566/2142 4188 4520 8193 8195-8196 13336 17032 18103 23088 24951 25383 25533 25647 26065 26091 26125 26313 27186 27773 27936 28200 28221 33271 33802 33954 34521 34534 34540 35923 36153 36172 36247 36261 36632 36785 37266 38347 38693 38704 43259 43306 43602 43626 43700 43828 43830 43891 44247 44995 45469 45636 45770 46017 46568 46738 46740 46811 47157 47201 47386 48160https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/463/455?format=asciidefaultJ/A+A/463/455/galaxiesGalaxy positions (From Simbad)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalaxySimbad namemeta.id;meta.maincharprimaryRAJ2000Simbad Hour of Right Ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Simbad Degree of Declination (J2000.0)pos.eq.dec;meta.mainBmagSimbad B band magnitudemagphot.mag;em.opt.BfloatVmag? Simbad V band magnitudemagphot.mag;em.opt.VfloatnullableMTypeSimbad morphological typesrc.morph.typecharPrevdata from papers I (J/A+A/433/497) and II (J/A+A/445/79)meta.ref.urlcharSimbadSimbad column added by the CDScharNEDSimbad column added by the CDScharLEDASimbad column added by the CDScharJ/A+A/463/455/table5Apertures: ages, metallicities and [{alpha}/Fe] ratios from (H{beta}, Mgb, and <Fe>)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalaxyGalaxy designationmeta.id;meta.maincharAperture[0/6] Aperture number (1)meta.codeintAgeAgeGyrtime.agefloate_AgeError on ageGyrstat.error;time.agefloatZMetallicity mass fractionphys.abund.Zfloate_ZError on metallicitystat.error;src.redshiftfloata/Fe{alpha}/Fe ratiophys.abundfloate_a/FeError on {alpha}/Fe ratiostat.error;phys.abundfloatJ/A+A/463/455/table6Apertures: ages, metallicities and [{alpha}/Fe] ratios from (H{gamma}_F_, Mgb, and <Fe>)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalaxyGalaxy designationmeta.id;meta.maincharAperture[0/6] Aperture number (1)meta.codeintAgeAgeGyrtime.agefloate_AgeError on ageGyrstat.error;time.agefloatZMetallicity mass fractionphys.abund.Zfloate_ZError on metallicitystat.error;src.redshiftfloata/Fe{alpha}/Fe ratiophys.abundfloate_a/FeError on {alpha}/Fe ratiostat.error;phys.abundfloatJ/A+A/463/455/table7Apertures: ages, metallicities and [{alpha}/Fe] ratios from (H{delta}_F_, Mgb, and <Fe>)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalaxyGalaxy designationmeta.id;meta.maincharAperture[0/6] Aperture number (1)meta.codeintAgeAgeGyrtime.agefloate_AgeError on ageGyrstat.error;time.agefloatZMetallicity mass fractionphys.abund.Zfloate_ZError on metallicitystat.error;src.redshiftfloata/Fe{alpha}/Fe ratiophys.abundfloate_a/FeError on {alpha}/Fe ratiostat.error;phys.abundfloatJ/A+A/463/455/table9Gradients: ages, metallicities and [{alpha}/Fe] ratios from (H{beta}, Mgb, and <Fe>)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalaxyGalaxy designationmeta.id;meta.maincharGradient[0/3] Gradient number (1)meta.codeintAgeAgeGyrtime.agefloate_AgeError on ageGyrstat.error;time.agefloatZMetallicity mass fractionphys.abund.Zfloate_ZError on metallicitystat.error;src.redshiftfloata/Fe{alpha}/Fe ratiophys.abundfloate_a/FeError on {alpha}/Fe ratiostat.error;phys.abundfloatJ/A+A/463/455/table10Gradients: ages, metallicities and [{alpha}/Fe] ratios from (H{gamma}_F_, Mgb, and <Fe>)a/Fe{alpha}/Fe ratiophys.abundfloate_ZError on metallicitystat.error;src.redshiftfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalaxyGalaxy designationmeta.id;meta.maincharGradient[0/3] Gradient number (1)meta.codeintAgeAgeGyrtime.agefloate_AgeError on ageGyrstat.error;time.agefloatZMetallicity mass fractionphys.abund.Zfloate_a/FeError on {alpha}/Fe ratiostat.error;phys.abundfloatJ/A+A/463/455/table11Gradients: ages, metallicities and [{alpha}/Fe] ratios from (H{delta}_F_, Mgb, and <Fe>)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalaxyGalaxy designationmeta.id;meta.maincharGradient[0/3] Gradient number (1)meta.codeintAgeAgeGyrtime.agefloate_AgeError on ageGyrstat.error;time.agefloatZMetallicity mass fractionphys.abund.Zfloate_ZError on metallicitystat.error;src.redshiftfloata/Fe{alpha}/Fe ratiophys.abundfloate_a/FeError on {alpha}/Fe ratiostat.error;phys.abundfloatJ/A+A/463/455/table12Gradients: final ages, metallicities and [{alpha}/Fe] ratiosrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalaxyGalaxy designationmeta.id;meta.maincharGradient[0/3] Gradient number (1)meta.codeintAgeAgeGyrtime.agefloate_AgeError on ageGyrstat.error;time.agefloatZMetallicity mass fractionphys.abund.Zfloate_ZError on metallicitystat.error;src.redshiftfloata/Fe{alpha}/Fe ratiophys.abundfloate_a/FeError on {alpha}/Fe ratiostat.error;phys.abundfloat