J/A+A/585/A47ivo://CDS.VizieR/J/A+A/585/A47doi:10.26093/cds/vizier.35850047CDSMarino R.A.Gil de Paz A.Sanchez S.F.Sanchez-Blazquez P.Cardiel N.,Castillo-Morales A.Pascual S.Vilchez J.Kehrig C.Molla M.,Mendez-Abreu J.Catalan-Torrecilla C.Florido E.Perez I.Ruiz-Lara T.,Ellis S.Lopez-Sanchez A.R.Gonzalez Delgado R.M.De Lorenzo-Caceres A.,Garcia-Benito R.Galbany L.Zibetti S.Cortijo C.Kalinova V.Mast D.,Iglesias-Paramo J.Papaderos P.Walcher C.J.Bland-Hawthorn J.,(the Califa Team)2017-09-22T16:16:22Z2016-05-10T13:34:34ZCDS support team

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

cds-question@unistra.frgalaxiesphotometryvisible-astronomysloan-photometryWe study, for the first time in a statistically significant and well-defined sample, the relation between the outer-disk ionized-gas metallicity gradients and the presence of breaks in the surface brightness profiles of disk galaxies. Sloan Digital Sky Survey (SDSS) g'- and r'-band surface brightness, (g'-r') color, and ionized-gas oxygen abundance profiles for 324 galaxies within the Calar Alto Legacy Integral Field Area (CALIFA) survey are used for this purpose. We perform a detailed light-profile classification, finding that 84% of our disks show down- or up-bending profiles (Type II and Type III, respectively), while the remaining 16% are well fitted by one single exponential (Type I). The analysis of the color gradients at both sides of this break shows a U-shaped profile for most Type II galaxies with an average minimum (g'-r') color of ~0.5mag and an ionized-gas metallicity flattening associated with it only in the case of low-mass galaxies. Comparatively, more massive systems show a rather uniform negative metallicity gradient. The correlation between metallicity flattening and stellar mass for these systems results in p-values as low as 0.01. Independent of the mechanism having shaped the outer light profiles of these galaxies, stellar migration or a previous episode of star formation in a shrinking star-forming disk, it is clear that the imprint in their ionized-gas metallicity was different for low- and high-mass Type II galaxies. In the case of Type III disks, a positive correlation between the change in color and abundance gradient is found (the null hypothesis is ruled out with a p-value of 0.02), with the outer disks of Type III galaxies with masses <=10^10^M_{sun}_ showing a weak color reddening or even a bluing. This is interpreted as primarily due to a mass downsizing effect on the population of Type III galaxies that recently experienced an enhanced inside-out growth.2016A&A...585A..47Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/585/A47CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/559/A114 : Updated O3N2 and N2 abundance indicators (Marino+, 2013)J/A+A/573/A59 : Gas kinematics in CALIFA survey (Garcia-Lorenzo+, 2015)J/A+A/576/A135 : CALIFA DR2 (Garcia-Benito+, 2015)J/A+A/581/A103 : CALIFA survey across the Hubble sequence (Gonzalez+, 2015)J/A+A/582/A21 : Merging galaxies (mis)alignments (Barrera-Ballesteros+, 2015)J/A+A/584/A87 : CALIFA sample SFR calibration (Catalan-Torrecilla+, 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/585/A47https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/585/A47http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/585/A47https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/585/A47https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/585/A47http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/585/A47GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/585/A47/tableb1 (Disk classification and physical properties of the CALIFA galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/585/A47/tableb1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/585/A47/tableb1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/585/A47/tableb1?GETtext/xml+votable180.050000true23.323612513.33243610.0055555555555555566/56 552 554 568 573 620 721 733 738 909 975 995 2206 2229 2248 2251 2272-2274 2290 2641 4053 4178 4342 4445 4454 4507 4511 4799 4813 4843 4912 4950 5028 5247 5298 5332 5505 5533 5579 5593 5701 5704 5889 6087 6214 6216 6240-6241 6261 6270 6342 6362 6366 6977 7204 7214 7309 7340 7501 7559 7584 7591 7824 7834 7844 8045 8327 8331 8366 8458 8477 8480 8492 8498 8522 8536 8552 8562-8563 8621 8646 8728 8743 8752 8825 8883 8919 8921-8922 8973 9098 9101 9124 9133 9187 9216 9220 9381 9622 9628 9630 9718 9798 9859 9873 9875 9883 9885 9891 9974 10025 10111 10113 10182-10183 10200 10213 10220-10221 10280 10286 10380-10381 10398 10414 10422 10434 10448 10485 10511-10512 10518-10519 10524 10560 10566 10570 10577 10583 10586 10588 10595 10609 10612 10621 10627-10629 10661-10662 10674 10705 10711 10721 10727 10739-10740 10773 10778 10846 10987 11112 11196 11272 11290 11342 11369 11372 11374 11377 11383 11392 11396 11433 11443 11451 11777 11789 11793 11800 11804 11832 11944 12306 12378 12399 12709 13316 13381 13426 15004 16007 16696 16702 16787-16788 16793 17234 17238 17350 17392 17398 17486 17499 17509 17511 17578 17751 17819 17912 18069 18071 18081 18173 18242 18252 18300 18302 18381 18383 18775 18779 18781 18790 18800 18838 18854 18932 18935 18941 19073 19108 19186 19227 19260 19267 19458 19487 19489 19508 19515 19537-19538 19589 19618 19696 19749 19848 19939 19954 19983-19984 19991 19996-19997 20009 20020 20023 20031 20033 20040 20193 20254 20279 20417-20418 20429 22652 22737 22741 23273 23337 23353 23401 23405 26102 26108 26495 26551 27133 27559 27567 27719 27748 28430 28458 28497 28513 28522 28579 28617 28639 29973 31478 31546 31628 31642-31643 31688-31689 31736 32462 32471 32478 32482 32559 48880 49121 49150https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/585/A47?format=asciiOpticaldefaultJ/A+A/585/A47/tableb1Disk classification and physical properties of the CALIFA galaxiesSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintparamindicates derived physical properties at break radius in tableb2meta.ref.urlcharNameGalaxy name (G1)meta.id;meta.maincharprimaryzHeliocentric redshift z distance obtained from the NED databasesrc.redshiftfloatPTypePhotometrical type obtained from our analysis of the SDSS r'-band profilemeta.note;src.morph.typecharMTypeMorphological typesrc.morph.typecharlog(M*)? Stellar masslog(solMass)phys.massfloatnullableRMAG? Absolute R-band magnitudemagphot.mag;em.opt.RfloatnullableReffEffective radiuskpcphys.size.radiusfloatRg'b? Break radii obtained as the minimum of the double bootstrapping fit to the SDSS g'-band in Reff unitstat.fit.paramfloatnullablee_Rg'b? rms uncertainty on Rgbstat.errorfloatnullableRr'b? Break radii obtained as the minimum of the double bootstrapping fit to the SDSS i'-band in Reff unitstat.fit.paramfloatnullablee_Rr'b? rms uncertainty on Rr'bstat.errorfloatnullable_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/A+A/585/A47/tableb2Derived physical properties at break radius for the CALIFA galaxiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGalaxy name (G1)meta.id;meta.maincharPhotTPhotometrical type obtained from our analysis of the SDSS r'-band profilessrc.morph.typecharRr'bBreak radius obtained as the minimum of the double bootstrapping fit to the SDSS r'-band data in units of their Reffstat.fit.paramfloate_Rr'brms uncertainty on Rr'bstat.errorfloatDa(O/H)Difference between the outer-to-the- inner slopes as measured in the oxygen profilesstat.fit.paramfloate_Da(O/H)rms uncertainty on Da(O/H)stat.errorfloatDacolorDifference between the outer-to-the- inner slopes as measured in the (g'-r') color profilesstat.fit.paramfloate_Dacolorrms uncertainty on Dacolorstat.errorfloatmur'brkr'-band surface brightness computed at the r' break radiusmag.arcsec**-2phot.mag.sb;em.opt.Rfloat(g'-r')r'bcolor value computed at the r' break radiusmagphot.colorfloat(O/H)r'bOxygen abundance value computed at the r' break radiusphys.abundfloat