J/MNRAS/456/3899ivo://CDS.VizieR/J/MNRAS/456/3899doi:10.26093/cds/vizier.74563899CDSRibeiro B.Lobo C.Anton S.Gomes J.M.Papaderos P.2024-08-15T20:17:38Z2016-11-25T09:38:22ZCDS support team

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

cds-question@unistra.frgalaxiesvisible-astronomygalaxy-classification-systemsPseudo-bulges are expected to markedly differ from classical quasi-monolithically forming bulges in their star formation history (SFH) and chemical abundance patterns. To test this simple expectation, we carry out a comparative structural and spectral synthesis analysis of 10^6^ red massive galaxies issued from the Sloan Digital Sky Survey (SDSS), sub-divided into bulgeless, pseudo-bulge and classical bulge galaxies according to their photometric characteristics, and further obeying a specific selection to minimize uncertainties in the analysis and ensure an unbiased derivation and comparison of SFHs. Our 2D photometry analysis suggests that discs underlying pseudo-bulges typically have larger exponential scalelengths than bulgeless galaxies, despite similar integral disc luminosities. Spectral synthesis models of the stellar emission within the 3-arcsec SDSS fibre aperture reveal a clear segregation of bulgeless and pseudo-bulge galaxies from classical bulges on the luminosity-weighted planes of age-metallicity and mass-metallicity, though a large dispersion is observed within the two former classes. The secular growth of pseudo-bulges is also reflected upon their cumulative stellar mass as a function of time, which is shallower than that for classical bulges. Such results suggest that the centres of bulgeless and pseudo-bulge galaxies substantially differ from those of bulgy galaxies with respect to their SFH and chemical enrichment history, which likely points to different formation/assembly mechanisms.2016MNRAS.456.3899Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/456/3899CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/456/3899https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/456/3899http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/456/3899https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/456/3899https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/456/3899http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/456/3899GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/456/3899/tablea1 (General properties and structural parameters for the pseudo-bulge galaxies studied)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/456/3899/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/456/3899/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/456/3899/tablea1?GETtext/xml+votable180.050000true212.9395-0.90430.005555555555555556Cone search capability for table J/MNRAS/456/3899/tablea2 (General properties and structural parameters for the bulgeless class galaxies studied)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/456/3899/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/456/3899/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/456/3899/tablea2?GETtext/xml+votable180.050000true212.37280.14370.005555555555555556Cone search capability for table J/MNRAS/456/3899/tablea3 (General properties and structural parameters for the bulgy class galaxies studied)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/456/3899/tablea3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/456/3899/tablea3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/456/3899/tablea3?GETtext/xml+votable180.050000true55.98950.43780.005555555555555556Cone search capability for table J/MNRAS/456/3899/tablea4 (General properties and structural parameters for the intermediate-eta bulge class galaxies studied)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/456/3899/tablea4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/456/3899/tablea4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/456/3899/tablea4?GETtext/xml+votable180.050000true211.8419-1.09640.0055555555555555566/4146 4181 4314 4434 4448 4597 5150 5262 5534 5694 5891 6265 6527 6603 6740 7202 7238 7314 8693 8748 8788 9297 9335 9370 9843 9963 10412 10472 10670 10968 11059 11328 11489 11599 11783 11916 17503 18003 18009 18072 18366 18385 18405 19025 21845 21981 22367 23147 23193 23232 25918-25919 25942 25947-25948 25958 25962 26001 26003 26007 26012 26027 26173 26175 26198 26220 26263 26284 26420 26512 26533 26981-26983 27031 27056 27073 27224 27471-27472 27536 27591 28262 28278 28320 28353 28464 28615 31311 31315 31323 31329 31333 31340 31345 31395 31400 31403 31488 31647 31698 32445 49013https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/456/3899?format=asciiOpticaldefaultJ/MNRAS/456/3899/tablea1General properties and structural parameters for the pseudo-bulge galaxies studiedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Galaxy right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Galaxy declination (J2000)degpos.eq.dec;meta.mainzSDSS redshift valuesrc.redshiftfloatg-rg-r colour index rom the NYU-VAGC cataloguemagphot.color;em.opt.B;em.opt.RfloatrmagTotal r-band magnitude of the galaxy as derived from GALFITmagphot.mag;em.opt.Rfloatred? Effective radius of the disk structural componentkpcphys.angSize;srcfloatnullablee_red? rms uncertainty on redkpcstat.errorfloatnullablereb? Effective radius of the bulge structural componentkpcphys.angSize;srcfloatnullablee_reb? rms uncertainty on rebkpcstat.errorfloatnullableSer? Sersic index of the bulge component ({eta}_b_)stat.fit.paramfloatnullablee_Ser? rms uncertainty on Serstat.errorfloatnullableSloanDisplay the SDSS data for thsi galaxymeta.ref.urlcharJ/MNRAS/456/3899/tablea2General properties and structural parameters for the bulgeless class galaxies studiedzSDSS redshift valuesrc.redshiftfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Galaxy right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Galaxy declination (J2000)degpos.eq.dec;meta.maing-rg-r colour index rom the NYU-VAGC cataloguemagphot.color;em.opt.B;em.opt.RfloatrmagTotal r-band magnitude of the galaxy as derived from GALFITmagphot.mag;em.opt.Rfloatred? Effective radius of the disk structural componentkpcphys.angSize;srcfloatnullablee_red? rms uncertainty on redkpcstat.errorfloatnullablereb? Effective radius of the bulge structural componentkpcphys.angSize;srcfloatnullablee_reb? rms uncertainty on rebkpcstat.errorfloatnullableSer? Sersic index of the bulge component ({eta}_b_)stat.fit.paramfloatnullablee_Ser? rms uncertainty on Serstat.errorfloatnullableSloanDisplay the SDSS data for thsi galaxymeta.ref.urlcharJ/MNRAS/456/3899/tablea3General properties and structural parameters for the bulgy class galaxies studiedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Galaxy right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Galaxy declination (J2000)degpos.eq.dec;meta.mainzSDSS redshift valuesrc.redshiftfloatg-rg-r colour index rom the NYU-VAGC cataloguemagphot.color;em.opt.B;em.opt.RfloatrmagTotal r-band magnitude of the galaxy as derived from GALFITmagphot.mag;em.opt.Rfloatred? Effective radius of the disk structural componentkpcphys.angSize;srcfloatnullablee_red? rms uncertainty on redkpcstat.errorfloatnullablereb? Effective radius of the bulge structural componentkpcphys.angSize;srcfloatnullablee_reb? rms uncertainty on rebkpcstat.errorfloatnullableSer? Sersic index of the bulge component ({eta}_b_)stat.fit.paramfloatnullablee_Ser? rms uncertainty on Serstat.errorfloatnullableSloanDisplay the SDSS data for thsi galaxymeta.ref.urlcharJ/MNRAS/456/3899/tablea4General properties and structural parameters for the intermediate-eta bulge class galaxies studiedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Galaxy right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Galaxy declination (J2000)degpos.eq.dec;meta.mainzSDSS redshift valuesrc.redshiftfloatg-rg-r colour index rom the NYU-VAGC cataloguemagphot.color;em.opt.B;em.opt.RfloatrmagTotal r-band magnitude of the galaxy as derived from GALFITmagphot.mag;em.opt.Rfloatred? Effective radius of the disk structural componentkpcphys.angSize;srcfloatnullablee_red? rms uncertainty on redkpcstat.errorfloatnullablereb? Effective radius of the bulge structural componentkpcphys.angSize;srcfloatnullablee_reb? rms uncertainty on rebkpcstat.errorfloatnullableSer? Sersic index of the bulge component ({eta}_b_)stat.fit.paramfloatnullablee_Ser? rms uncertainty on Serstat.errorfloatnullableSloanDisplay the SDSS data for thsi galaxymeta.ref.urlchar