J/ApJ/826/71ivo://CDS.VizieR/J/ApJ/826/71doi:10.26093/cds/vizier.18260071CDSIglesias-Paramo J.Vilchez J.M.Rosales-Ortega F.F.Sanchez S.F.,Duarte Puertas S.Petropoulou V.Gil de Paz A.Galbany L.Molla M.,Catalan-Torrecilla C.Castillo Morales A.Mast D.Husemann B.,Garcia-Benito R.Mendoza M.A.Kehrig C.Perez-Montero E.Papaderos P.,Gomes J.M.Walcher C.J.Gonzalez Delgado R.M.Marino R.A.,Lopez-Sanchez A.R.Ziegler B.Flores H.Alves J.2017-01-23T22:00:00Z2016-10-27T07:54:25ZCDS support team

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

cds-question@unistra.frgalaxiesspectroscopyredshiftedThis paper aims to provide aperture corrections for emission lines in a sample of spiral galaxies from the Calar Alto Legacy Integral Field Area Survey (CALIFA; Sanchez+, 2012A&A...538A...8S) database. In particular, we explore the behavior of the log([OIII]{lambda}5007/H{beta})/([NII]{lambda}6583/H{alpha}) (O3N2) and log[NII]{lambda}6583/H{alpha} (N2) flux ratios since they are closely connected to different empirical calibrations of the oxygen abundances in star-forming galaxies. We compute the median growth curves of H{alpha}, H{alpha}/H{beta}, O3N2, and N2 up to 2.5R_50_ and 1.5 disk Reff. These distances cover most of the optical spatial extent of the CALIFA galaxies. The growth curves simulate the effect of observing galaxies through apertures of varying radii. We split these growth curves by morphological types and stellar masses to check if there is any dependence on these properties. The median growth curve of the H{alpha} flux shows a monotonous increase with radius with no strong dependence on galaxy inclination, morphological type, and stellar mass. The median growth curve of the H{alpha}/H{beta} ratio monotonically decreases from the center toward larger radii, showing for small apertures a maximum value of ~10% larger than the integrated one. It does not show any dependence on inclination, morphological type, and stellar mass. The median growth curve of N2 shows a similar behavior, decreasing from the center toward larger radii. No strong dependence is seen on the inclination, morphological type, and stellar mass. Finally, the median growth curve of O3N2 increases monotonically with radius, and it does not show dependence on the inclination. However, at small radii it shows systematically higher values for galaxies of earlier morphological types and for high stellar mass galaxies. Applying our aperture corrections to a sample of galaxies from the SDSS survey at 0.02<=z<=0.3 shows that the average difference between fiber-based and aperture-corrected oxygen abundances, for different galaxy stellar mass and redshift ranges, reaches typically to ~11%, depending on the abundance calibration used. This average difference is found to be systematically biased, though still within the typical uncertainties of oxygen abundances derived from empirical calibrations. Caution must be exercised when using observations of galaxies for small radii (e.g., below 0.5 Reff) given the high dispersion shown around the median growth curves. Thus, the application of these median aperture corrections to derive abundances for individual galaxies is not recommended when their fluxes come from radii much smaller than either R_50_ or Reff.2016ApJ...826...71Ihttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/826/71CatalogResearchIsServedByTAP VizieR generic servicerelated-toII/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)III/250 : The VIMOS VLT deep survey (VVDS-DEEP) (Le Fevre+ 2005)VII/250 : The 2dF Galaxy Redshift Survey (2dFGRS) (2dFGRS Team, 1998-2003)J/A+A/587/A70 : CALIFA face-on spiral gal. oxygen (Sanchez-Menguiano+, 2016)J/A+A/585/A47 : CALIFA color/metallicity gradients (Marino+, 2016)J/A+A/581/A103 : CALIFA survey across the Hubble sequence (Gonzalez+, 2015)J/A+A/576/A135 : CALIFA DR2 (Garcia-Benito+, 2015)J/MNRAS/446/1567 : SAMI Galaxy Survey: EDR (Allen+, 2015)J/A+A/559/A114 : Updated O3N2 and N2 abundance indicators (Marino+, 2013)J/MNRAS/421/1569 : Properties of 18286 SDSS radio galaxies (Best+, 2012)J/MNRAS/413/813 : ATLAS3D project. I. (Cappellari+, 2011)J/MNRAS/404/1639 : MILES base models + new line index system (Vazdekis+, 2010)J/ApJS/172/70 : zCOSMOS-bright catalog (Lilly+, 2007)J/MNRAS/371/703 : MILES library of empirical spectra (Sanchez-Blazquez+, 2006)J/PASP/117/227 : Properties of 101 galaxies from the NFGS (Kewley+, 2005)http://califa.caha.es/ : CALIFA 3rd data releasehttp://www.sdss3.org/ : SDSS-III home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/826/71https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/826/71http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/826/71https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/826/71https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/826/71http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/826/71GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJ/826/71/table24*Difference of the O3N2 values and 1-{sigma} dispersions of the aperture corrections for fixed apertures of either 10 or 3.3kpc diameterrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFiber[3/15] Angular diameter of SDSS/SAMI aperture (G1)arcsecphys.angSize;instr.fovfloatRefer[3/10] Linear diameter of fixed reference aperturekpcmeta.ref;pos.framefloatz[0.01/1] Redshiftsrc.redshiftfloatb_dO3N2The 15.86% (-1{sigma}) of the O3N2 aperture correction distributionmeta.notefloatdO3N2[-0.2/0.1] The 50% (median) of the O3N2 aperture correction distribution (03N2_Ang_-03N2_Lin_)_50_arith.factorfloatB_dO3N2The 84.14% (+1{sigma}) of the O3N2 aperture correction distributionmeta.notefloatAllDisplay all aperture correction distribution at this redshift and diametermeta.ref.urlcharJ/ApJ/826/71/table21*Ratio of the H{alpha} flux and 1-{sigma} dispersions of the aperture corrections for fixed apertures of either 10 or 3.3kpc diameterrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFiber[3/15] Angular diameter of SDSS/SAMI aperture (G1)arcsecphys.angSize;instr.fovfloatRefer[3/10] Linear diameter of fixed reference aperturekpcmeta.ref;pos.framefloatz[0.01/0.6] Redshiftsrc.redshiftfloatb_HaThe 15.86% (-1{sigma}) of the H{alpha} aperture correction distributionmeta.notefloatHa[0.05/1.2] The 50% (median) of the H{alpha} aperture correction distribution ({alpha}_Ang_/{alpha}_Lin_)_50_arith.factorfloatB_HaThe 84.14% (+1{sigma}) of the H{alpha} aperture correction distributionmeta.notefloatAllDisplay all aperture correction distribution at this redshift and diametermeta.ref.urlcharJ/ApJ/826/71/table22*Ratio of the H{alpha}/H{beta} and 1-{sigma} dispersions of the aperture corrections for fixed apertures of either 10 or 3.3kpc diameterrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFiber[3/15] Angular diameter of SDSS/SAMI aperture (G1)arcsecphys.angSize;instr.fovfloatRefer[3/10] Linear diameter of fixed reference aperturekpcmeta.ref;pos.framefloatz[0.01/0.6] Redshiftsrc.redshiftfloatb_Ha/HbThe 15.86% (-1{sigma}) of the H{alpha}/H{beta} aperture correction distributionmeta.notefloatHa/Hb[0.05/1.2] 50% (median) of the H{alpha}/H{beta} aperture correction distribution ({alpha}{beta}_Ang_/{alpha}{beta}_Lin_)_50_arith.factorfloatB_Ha/HbThe 84.14% (+1{sigma}) of the H{alpha}/H{beta} aperture correction distributionmeta.notefloatAllDisplay all aperture correction distribution at this redshift and diametermeta.ref.urlcharJ/ApJ/826/71/table23*Difference of the N2 values and 1-{sigma} dispersions of the aperture corrections for fixed apertures of either 10 or 3.3kpc diameterrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFiber[3/15] Angular diameter of SDSS/SAMI aperture (G1)arcsecphys.angSize;instr.fovfloatRefer[3/10] Linear diameter of fixed reference aperturekpcmeta.ref;pos.framefloatz[0.01/1] Redshiftsrc.redshiftfloatb_dN2The 15.86% (-1{sigma}) of the N2 aperture correction distributionmeta.notefloatdN2[-0.2/0.1] The 50% (median) of the N2 aperture correction distribution (N2_Ang_-N2_Lin_)_50_arith.factorfloatB_dN2The 84.14% (+1{sigma}) of the N2 aperture correction distributionmeta.notefloatAllDisplay all aperture correction distribution at this redshift and diametermeta.ref.urlchar