Detailed morphology of SDSS galaxies J/ApJS/186/427 ivo://CDS.VizieR/J/ApJS/186/427 doi:10.26093/cds/vizier.21860427 CDS Nair P.B. Abraham R.G. 2026-07-29T06:27:17Z 2010-05-31T17:59:48Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr galaxies catalogs galaxy-classification-systems visible-astronomy sloan-photometry redshifted We present a catalog of detailed visual classifications for 14034 galaxies in the Sloan Digital Sky Survey (SDSS) Data Release 4 (DR4, Cat. <II/267>). Our sample includes nearly all spectroscopically targeted galaxies in the redshift range 0.01<z<0.1 down to an apparent extinction-corrected limit of g<16mag. In addition to T-Types, we record the existence of bars, rings, lenses, tails, warps, dust lanes, arm flocculence, and multiplicity. This sample defines a comprehensive local galaxy sample which we will use in future papers to study low-redshift morphology. It will also prove useful for calibrating automated galaxy classification algorithms. In this paper, we describe the classification methodology used, detail the systematics and biases of our sample, and summarize the overall statistical properties of the sample, noting the most obvious trends that are relevant for general comparisons of our catalog with previously published work. 2010ApJS..186..427N https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/186/427 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to VII/155 : Bright Galaxies Third Reference (RC3) (de Vaucouleurs+ 1991) II/294 : SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009) J/AJ/134/579 : SDSS DR3 Morphologically classified galaxies (Fukugita+, 2007) J/AJ/128/163 : Galaxy morphological classification (Lotz+, 2004) http://sdss.physics.nyu.edu/vagc/ : The NYU Value-Added Galaxy catalog site https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/186/427 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/186/427 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/186/427 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/186/427 https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/186/427 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/186/427 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/ApJS/186/427/table2 (T-Type classification schemes) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/186/427/table2? https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/186/427/table2? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/186/427/table2? 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31408 31414-31415 31418-31419 31424 31430 31433 31435-31436 31440-31441 31446 31453-31455 31457-31459 31464-31465 31476 31479-31481 31485 31651 32399 32408-32410 32413-32415 32421-32423 32432-32433 32440 32442-32443 32462 32480-32482 32501-32503 32672 32674 32682-32683 36607 36703 36715 36717-36719 36725 36732-36733 36759 36763 36775 36777-36779 36784-36785 36787-36790 36792-36793 36800 36802-36803 36805-36810 36812 36817 36861-36862 40957 40959 45039 45045-45047 45049-45052 45055 48983 48990-48991 49005 49007 49010 49013 49022 49079 49084-49086 49092 49094 49097-49098 49100-49102 49105-49106 49112 49128 49130 49150-49151 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/186/427?format=ascii Optical default J/ApJS/186/427/table2 T-Type classification schemes Tt ?=99. Fukugita et al., 2007, Cat. <J/AJ/134/579> Tt classification meta.code;src.morph float nullable SimbadName Simbad column added by the CDS meta.id char nullable NED NED column added by the CDS meta.ref.url char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int zs Spectroscopic redshift src.redshift;pos.heliocentric float q_zs [0.301/1] Confidence level in zs meta.code.qual float g'mag ? SDSS g' band magnitude; extinction corrected mag phot.mag;em.opt.B float nullable r'mag SDSS r' band magnitude; extinction corrected mag phot.mag;em.opt.R float g'MAG ? Absolute SDSS g' band magnitude (1) mag phys.magAbs float nullable logLg' ? Log of SDSS g' band luminosity log(solLum) phys.luminosity float nullable Rp Petrosian radius (Petrosian, 1976ApJ...209L...1P) kpc phys.angSize;src float Rp50 ? Petrosian half light radius from SDSS kpc phys float nullable Rp90 ? Petrosian 90% light radius from SDSS kpc phys float nullable log(M) ? Log of the mass (Kauffmann et al., 2003MNRAS.341...33K) log(solMass) phys.mass float nullable Age ? Age (Kauffmann et al., 2003MNRAS.341...33K) Gyr time.age float nullable g'-r' ? SDSS (g'-r') color index mag phot.color;em.opt.B;em.opt.R float nullable SFRT ? Total star formation rate (2) solMass/yr meta.id float nullable SFRM ? Total star formation rate per unit mass (solMass/yr/solMass) (2) yr**-1 meta.id float nullable mug Surface brightness in g band (3) mag.arcsec**-2 phot.mag.sb float muM ? Surface mass density solMass.kpc**-2 phot.flux.density.sb float nullable M/L ? Mass to light ratio in g band Sun phys.composition.massLightRatio float nullable Area ? Galaxy area arcsec**2 phys.area float nullable b/a ? Axis ratio phys.angSize;arith.ratio float nullable Seeing Seeing in g band arcsec instr.obsty.seeing float NYU-ID Object tag from NYU database (4) meta.id int ng Single component Sersic g band index (5) stat.fit.param float nr Single component Sersic r band index (5) stat.fit.param float chi2g The {chi}^2^ for ng (6) stat.fit.chi2 double chi2r The {chi}^2^ for nr (6) stat.fit.chi2 double R50n Single component Sersic g band half light radius (5) stat.fit.param float R90n Single component Sersic g band 90% light radius (5) stat.fit.param float sigma ? SDSS velocity dispersion km/s phys.veloc.dispersion float nullable e_sigma ? Error in sigma km/s stat.error float nullable V/Vmax Maximum physical volume in which a galaxy can be detected in DR4 (7) phys.volume;arith.ratio float AGN1 [0/3]? AGN type using Kauffmann et al. 2003MNRAS.346.1055K, demarcation (8) src.class int nullable AGN2 [0/3]? AGN type using Kewley et al., 2001ApJ...556..121K, demarcation (8) src.class int nullable GrID ? Group ID from Yang et al., 2007ApJ...671..153Y (YA07) (9) meta.id int nullable Ngr ? Number of galaxies group (in YA07) meta.number int nullable BiG ? Flag indicating if galaxy is most massive in group YA07 (10) meta.code int nullable LiG ? Flag indicating if galaxy is most luminous in group YA07 (10) meta.code int nullable log(Lgr) ? YA07 group log luminosity log(solLum) phys.luminosity float nullable log(Mgr) ? YA07 group log mass log(solMass) phys.mass float nullable log(Mh1) ? YA07 group halo mass estimate log(solMass) phys.mass float nullable log(Mh2) ? YA07 group halo mass estimate log(solMass) phys.mass float nullable rhoNYU ? Environmental over-density (11) phys.density;arith.ratio float nullable <rho> ? Average environmental over-density (12) phys.density;arith.ratio float nullable rho4 ? 4th neareast neighbor environment estimate (13) phys.density;arith.ratio float nullable rho5 ? 5th neareast neighbor environment estimate (13) phys.density;arith.ratio float nullable TT ? T-Type classification using the modified RC3 classifiers src.morph.type int nullable Bar Bar type (14) meta.note int Ring Ring type (15) meta.code;src.morph int f_Ring Ring flag (16) meta.code int Lens Lens Type (17) meta.code;src.morph int TTq T-Type flag (18) meta.code.qual int Pair Pair flag (19) meta.code;src.morph int f_Pair Pair type flag (20) meta.code int Int Interaction type (21) meta.code;src.morph int Nt Number of tails (22) meta.code;src.morph int RC3 Full visual RC3 classification meta.code;src.morph char DR7 Details of photometry from SDSS-DR7 (Cat. II/294) meta.ref.url char Sloan Display the online SDSS-DR19 data for the nearest object meta.ref.url char _RA position, derived from SDSS name (right ascension part) deg pos.eq.ra;meta.main indexed _DE position, derived from SDSS name (declination part) deg pos.eq.dec;meta.main indexed SDSS SDSS name (JHHMMSS.ss+DDMMSS.ss) meta.id;meta.main char spID SDSS spectra ID (Plate-MJD-Fiber) meta.id char