J/A+A/599/A71ivo://CDS.VizieR/J/A+A/599/A71doi:10.26093/cds/vizier.35990071CDSDuarte Puertas S.Vilchez J.M.Iglesias-Paramo J.Kehrig C.,Perez-Montero E.Rosales-Ortega F.F.2025-02-26T20:01:18Z2017-09-11T07:01:12ZCDS support team

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

cds-question@unistra.frsurveysgalaxiescatalogsextinctionLarge area surveys with a high number of galaxies observed have undoubtedly marked a milestone in the understanding of several properties of galaxies, such as star-formation history, morphology, and metallicity. However, in many cases, these surveys provide fluxes from fixed small apertures (e.g. fibre), which cover a scant fraction of the galaxy, compelling us to use aperture corrections to study the global properties of galaxies. In this work, we derive the current total star formation rate (SFR) of Sloan Digital Sky Survey (SDSS) star-forming galaxies, using an empirically based aperture correction of the measured H{alpha} flux for the first time, thus minimising the uncertainties associated with reduced apertures. All the H{alpha} fluxes have been extinction-corrected using the H{alpha}/H{beta} ratio free from aperture effects. The total SFR for ~210000 SDSS star-forming galaxies has been derived applying pure empirical H{alpha} and H{alpha}/H{beta} aperture corrections based on the Calar Alto Legacy Integral Field Area (CALIFA) survey. We find that, on average, the aperture-corrected SFR is ~0.65dex higher than the SDSS fibre-based SFR. The relation between the SFR and stellar mass for SDSS star-forming galaxies (SFR-M*) has been obtained, together with its dependence on extinction and H{alpha} equivalent width. We compare our results with those obtained in previous works and examine the behaviour of the derived SFR in six redshift bins, over the redshift range 0.005<=z<=0.22. The SFR-M* sequence derived here is in agreement with selected observational studies based on integral field spectroscopy of individual galaxies as well as with the predictions of recent theoretical models of disc galaxies.2017A&A...599A..71Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/599/A71CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)J/ApJ/826/71 : Growth curves of CALIFA spiral galaxies (Iglesias-Paramo+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/599/A71https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/599/A71http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/599/A71https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/599/A71https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/599/A71http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/599/A71GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/599/A71/catalog (Catalogue of 209276 SDSS star-forming galaxies empirically corrected for aperture using the empirical aperture corrections from Iglesias-Paramo et al. 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(2016, Cat J/ApJ/826/71)SimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintspecObjIDSDSS-DR12 unique spectrum identificationmeta.idRAJ2000SDSS right ascension (J2000)degpos.eq.ra;meta.mainindexedDEJ2000SDSS declination (J2000)degpos.eq.dec;meta.mainindexedzSpectroscopic redshiftsrc.redshiftfloatpetroR50rRadius containing 50% of Petrosian flux in the r-bandarcsecphys.angSize;srcfloatHacorrTotal H{alpha} flux corrected for aperture effects and extinctionmW.m**-2phot.flux;em.line.HalphadoubleAHaExtinction in H{alpha}magphys.absorptionfloatLHaH{alpha} luminosity corrected for aperture effects1e-07Wphys.luminosity;em.line.HalphadoublelogSFRLog of total star formation rate corrected for aperture effectslog(solMass.yr**-1)meta.id;meta.mainfloatlogsSFRLog of total specific star formation rate corrected for aperture effectslog(Gyr**-1)phys.SFRfloatSloanDisplay the online SDSS data for this objectmeta.ref.urlchar