J/A+A/608/A127ivo://CDS.VizieR/J/A+A/608/A127doi:10.26093/cds/vizier.36080127CDSPilyugin L.S.Grebel E.K.Zinchenko I.A.Nefedyev Y.A.Vilchez J.M.2017-12-20T08:47:26Z2017-12-14T08:18:44ZCDS support team

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

cds-question@unistra.frgalaxiescatalogsinterstellar-mediumchemical-abundancesWe examine the relation between breaks in the surface brightness profiles and radial abundance gradients within the optical radius in the discs of 134 spiral galaxies from the CALIFA survey. The distribution of the radial abundance (in logarithmic scale) in each galaxy was fitted by simple and broken linear relations. The surface brightness profile was fitted assuming pure and broken exponents for the disc. We find that the maximum absolute difference between the abundances in a disc given by broken and pure linear relations is less than 0.05dex in the majority of our galaxies and exceeds the scatter in abundances for 26 out of 134 galaxies considered. The scatter in abundances around the broken linear relation is close (within a few percent) to that around the pure linear relation. The breaks in the surface brightness profiles are more prominent. The scatter around the broken exponent in a number of galaxies is lower by a factor of two or more than that around the pure exponent. The shapes of the abundance gradients and surface brightness profiles within the optical radius in a galaxy may be different. A pure exponential surface brightness profile may be accompanied by a broken abundance gradient and vise versa. There is no correlation between the break radii of the abundance gradients and surface brightness profiles. Thus, a break in the surface brightness profile does not need to be accompanied by a break in the abundance gradient.2017A&A...608A.127Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/608/A127CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/576/A135 : CALIFA DR2 (Garcia-Benito+, 2015)J/A+A/584/A87 : CALIFA sample SFR calibration (Catalan-Torrecilla+, 2015)J/A+A/585/A47 : CALIFA color/metallicity gradients connections (Marino+, 2016)J/A+A/587/A70 : CALIFA face-on spiral gal. oxygen (Sanchez-Menguiano+, 2016)J/A+A/595/A62 : CALIFA galaxies O/H and N/O slopes (Perez-Montero+, 2016)J/A+A/597/A48 : Stellar kinematics in CALIFA survey (Falcon-Barroso+, 2017)J/A+A/598/A32 : 2D decomposition of CALIFA galaxies (Mendez-Abreu+, 2017)J/A+A/604/A4 : CALIFA galaxies observational hints (Ruiz-Lara+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/608/A127https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/608/A127http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/608/A127https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/608/A127https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/608/A127http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/608/A127GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/608/A127/table1 (Parameters of the galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/608/A127/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/608/A127/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/608/A127/table1?GETtext/xml+votable180.050000true1.815937527.70809170.0055555555555555566/568 721 738 908 2206 2272 2274 2290 2641 4342 4445 4667 4704 4753-4754 4813 4840 4844 4850 5024 5332 5593 5695 6045 6214 6240 6261 6270 6366 6547 6607 7340 7559 7591 7824 8480 8492 8498 8522 8536 8621 8743 9124 9216 9220 9628 9718 9875 9883 9974 10025 10221 10380-10381 10414 10422 10448 10566 10588 10595 10612 10661-10662 10674 10705 10740 10778 11112 11164 11290 11387 11392 11433 11761 11793 11804 13381 15004 17350 17398 17499 17745 17747 17819 18069 18173 18242 18781 18854 18932 18934 18941 19027 19186 19260 19458 19489 19538 19593 19618 19633 19848 19996 20020 20031 20193 20279 20417-20418 22652 22655 22742 23051 23076 23182 23204 27259 27559 27567 28458 28617 28639 31628 31688-31689 32478 36733 36857 48880https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/608/A127?format=asciidefaultJ/A+A/608/A127/table1Parameters of the galaxiesMtypemorphological type of galaxysrc.morph.typechariInclination angledegsrc.orbital.inclination;pos.posAngfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameNED name of the galaxymeta.id;meta.maincharTcodemorphological T codemeta.code;src.morph.typefloatRAdegRight ascension (J2000.0)degpos.eq.raDEdegDeclination (J2000.0)degpos.eq.decPAPosition angle of major axisdegpos.posAngfloatdDistanceMpcpos.distancefloatR25minOptical radius R25 in arcminarcminphys.angSize;em.optfloatR25kpcOptical radius R25 in kpckpcphys.size.radiusfloatOHoCentral oxygen abundance at linear relationphys.abundfloate_OHoError of OHostat.errorfloatgradAbundance gradient at linear relation (in dex/R25 unit)arith.gradfloate_gradError of grad (in dex/R25 unit)stat.errorfloatsigmaOHpScatter in abundance around linear relationstat.stdevfloatnNumber of abundance data pointsmeta.numberintb1OHo of inner part of broken linear relationphys.abundfloate_b1Error in b1stat.errorfloata1Abundance gradient of inner part of broken linear relation (in dex/R25 unit)arith.gradfloate_a1Error in a1 (in dex/R25 unit)stat.errorfloatb2OHo of outer part of broken linear relationphys.abundfloate_b2Error in b2stat.errorfloata2Abundance gradient of outer part of broken linear relation (in dex/R25 unit)arith.gradfloate_a2Error in a2 (in dex/R25 unit)stat.errorfloatRbOHBreak radius in broken linear relation (in R25 unit)phys.size.radiusfloatsigmaOHbScatter in abundance around broken linear relation (in dex)stat.stdevfloatSRepBulge surface brightness at effective radius in pure exponentialsolLum.pc**-2pos.distancefloatRepEffective radius in pure exponentialkpcphys.size.radiusfloatnpShape parameter in pure exponentialstat.fit.paramfloatSdopCentral disc surface brightness in pure exponentialsolLum.pc**-2phot.flux.sbfloathpDisc scale length in pure exponentialkpcphys.angSize;srcfloatsigmaSBpScatter in surface brightness around pure exponentialstat.stdevfloatSRebBulge surface brightness at effective radius in broken exponentialsolLum.pc**-2pos.distancefloatRebEffective radius in broken exponentialkpcphys.size.radiusfloatnbShape parameter in broken exponentialstat.fit.paramfloatSdob1Central surface brightness of the inner disc in broken exponentialsolLum.pc**-2phot.flux.sbfloathb1Inner disc scale length in broken exponentialkpcphys.angSize;srcfloatSdob2Central surface brightness of the outer disc in broken exponentialsolLum.pc**-2phot.flux.sbfloathb2Outer disc scale length in broken exponentialkpcphys.angSize;srcfloatRbSBBreak radius in broken exponentialkpcphys.size.radiusfloatsigmaSBbScatter in surface brightness around broken exponentialstat.stdevfloatSimbadSimbad column added by the CDSmeta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlchar_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.main