J/MNRAS/435/2861ivo://CDS.VizieR/J/MNRAS/435/2861doi:10.26093/cds/vizier.74352861CDSMartins L.P.Rodriguez-Ardila A.Diniz S.Riffel R.de Souza R.2024-08-06T20:17:08Z2014-11-12T11:02:10ZCDS support team

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

cds-question@unistra.frgalaxiescatalogsinfrared-sourcesThe near-infrared spectral region is becoming a very useful wavelength range to detect and quantify the stellar population of galaxies. Models are developing to predict the contribution of the thermally pulsating stars on the asymptotic giant branch stars that should dominate the near-infrared region (NIR) spectra of populations 0.3 to 2Gyr old. When present in a given stellar population, these stars leave unique signatures that can be used to detect them unambiguously. However, these models have to be tested in a homogeneous data base of star-forming galaxies, to check if the results are consistent with what is found from different wavelength ranges. In this work, we performed stellar population synthesis on the nuclear and extended regions of 23 star-forming galaxies to understand how the star formation tracers in the NIR can be used in practice. The stellar population synthesis shows that for the galaxies with strong emission in the NIR, there is an important fraction of young/intermediate population contributing to the spectra, which is probably the ionization source in these galaxies. Galaxies that had no emission lines measured in the NIR were found to have older average ages and less contribution of young populations. Although the stellar population synthesis method proved to be very effective to find the young ionizing population in these galaxies, no clear correlation between these results and the NIR spectral indexes were found. Thus, we believe that, in practice, the use of these indexes is still very limited due to observational limitations.2013MNRAS.435.2861Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/435/2861CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/98/477 : Optical spectral atlas of Seyfert nuclei (Ho+ 1995)J/ApJS/112/315 : Spectroscopic parameters of Seyfert nuclei (Ho+ 1997)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/435/2861https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/435/2861http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/435/2861https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/435/2861https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/435/2861http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/435/2861GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/435/2861/table1 (Sample details)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/435/2861/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/435/2861/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/435/2861/table1?GETtext/xml+votable180.050000true10.674270840.86516940.0055555555555555566/700 1707 2142 2622 2687 4511 5634 5715 7287 11006 11372 11434 13124 15592 17905 18379 20014 20225-20226 23887 23921 26223 26285 26303 27938 32426 36194 36258https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/435/2861?format=asciiInfrareddefaultJ/MNRAS/435/2861/table1Sample detailszRedshiftsrc.redshiftfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalaxyGalaxy (1)src.class.starGalaxy;meta.maincharprimaryApAperturesinstr.fovcharClass[HN] Classification: H=HII galaxy, N=normalmeta.code.classcharW(Gband)? G-band equivalent width0.1nmspect.line.eqWidth;em.opt.BfloatnullablelogF(Ha)? H{alpha} flux (erg/cm^2^/s)log(mW.m**-2)phot.flux;em.line.HalphafloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharNEDSimbad column added by the CDSmeta.refchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/MNRAS/435/2861/table2Results of the NIR stellar population synthesisrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalaxyGalaxy namemeta.id;meta.maincharApAperture (2)instr.fovcharXy[0/64] Young (t<=5x10^7^yr) population component%stat.paramintXi[0/100] Intermediate (1x10^8^<=t<=2x10^9^yr) population component%stat.paramintXo[0/100] Old (t>2x10^9^yr) population component%stat.paramintAVExtinctionmagphys.absorptionfloatlog(t)Average age log(t_av_)log(yr)time.age;stat.meanfloatZAverage metallicity Z_av_phys.abund.Z;stat.meanfloatM*Stellar masssolMassphys.massdoubleMiniMass processed in stars during Galaxy lifetimesolMassphys.massdoubleSFR100[0/2.1] Star formation rate in the last 100#MyrsolMass/yrphys.SFRdoublechi2[0.5/11.1] Reduced {chi}^2^ valuestat.fit.chi2floatadevPercentage mean deviation |O-M|/O over all fitted pixels%stat.stdevfloatdDistance of the aperture to the nucleusarcsecpos.angDistancefloat