J/MNRAS/412/727ivo://CDS.VizieR/J/MNRAS/412/727doi:10.26093/cds/vizier.74120727CDSCheng J.Y.Faber S.M.Simard L.Graves G.J.Lopez E.D.Yan R.,Cooper M.C.2024-07-13T20:15:02Z2011-11-06T18:10:34ZCDS support team

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

cds-question@unistra.frsurveysgalaxiesphotometrygalaxy-classification-systemsIn the last decade, the advent of enormous galaxy surveys has motivated the development of automated morphological classification schemes to deal with large data volumes. Existing automated schemes can successfully distinguish between early- and late-type galaxies and identify merger candidates, but are inadequate for studying detailed morphologies of red sequence galaxies. To fill this need, we present a new automated classification scheme that focuses on making finer distinctions between early types roughly corresponding to Hubble types E, S0 and Sa. We visually classify a sample of 984 non-star-forming Sloan Digital Sky Survey galaxies with apparent sizes >14-arcsec. We then develop an automated method to closely reproduce the visual classifications, which both provides a check on the visual results and makes it possible to extend morphological analysis to much larger samples. We visually classify the galaxies into three bulge classes (BC) by the shape of the light profile in the outer regions: discs have sharp edges and bulges do not, while some galaxies are intermediate. We separately identify galaxies with features: spiral arms, bars, clumps, rings and dust.2011MNRAS.412..727Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/412/727CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/385/2097 : NUV-J colours of red-sequence galaxies (Rawle+, 2008)J/A+A/525/A157 : SDSS automated morph. classification (Huertas-Company+ 2011)http://www.sdss.org : SDSS Home Pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/412/727https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/412/727http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/412/727https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/412/727https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/412/727http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/412/727GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/412/727/table1 (Visual classifications and automated parameters for 984 galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/412/727/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/412/727/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/412/727/table1?GETtext/xml+votable180.050000true332.419-9.430.0055555555555555565/1483 1626 1636 1641 1823 1828 1840 4303 4505 4634 9191 6/0 527 547-549 552-554 5746 5752 5756 5758 5791 5811 5815-5817 5819-5820 5846 5874-5875 5881-5883 5927 5930-5931 5938 6027 6030-6031 6039 6041 6045-6046 6049 6054-6055 6057 6059 6062 6067-6068 6073-6078 6083-6084 6086 6091-6092 6094 6114 6119-6120 6127 6130-6132 6134 6136-6138 6141 6367 6428 6430 6448 6450 6457-6460 6462 6499 6502-6503 6508 6514 6517 6522-6523 6525 6527 6538 6541 6552 6554 6563 6576 6597 6599-6601 6603-6606 6608 6610 6612-6613 6621 6624-6625 6629 6645 7197-7198 7201 7203-7204 7208 7223 7225 7227-7229 7235 7245 7256 7258-7259 7262-7263 7270-7271 7273 7275-7278 7282 7284 7288 7304 7308-7309 7311 7316 7318-7319 7324-7325 7364-7365 7367 7369-7370 7382 7385 7427 7431 7433-7437 7440-7442 7444 7448-7449 7451-7453 7455-7457 7466-7467 7469-7471 7476 7479 7503 7505 7507 7509 7511 7521-7522 7526 7529 7531-7532 7553 7557 10095 10104 10106 10189 10191 11248-11249 11251 11253 11884 11915 11919 11925 11934 11936 11947 11950 11953 12288 12290 17211 17230 17233 17236-17237 17239 17243-17244 17248 17250-17251 17254 17257 17300-17301 17320 17344 17407 17496 17498 17500 17508 17510-17511 17515-17516 17518-17520 17522-17523 17559 17571 17574-17575 17577 17579-17580 17755 17920 17981 17983 17998 18008 18010 18017-18019 18027-18028 18030 18032 18061 18063 18068 18091-18092 18112 18295 18299 18301-18303 18382 18388-18390 18395-18396 18398 18405-18406 18409-18414 18511 18521-18523 18533 18535 18540-18541 18544 18552 18586-18587 18605 18607-18608 18611 18616-18618 18624-18626 18628 18766-18767 18786 18788-18789 18794-18796 18800 18833 18837-18839 18880 18883 19007 19051 19101 19136-19137 19456-19458 19645 19674 19683 19689 19704 19732 19734-19735 19739-19740 19748-19749 19751 19756 19759-19762 19764 19776 19778 19985 19987 19990-19991 21845 21847 22719 22762 23057 23059-23060 23063 23074 23187-23188 23192 23194 23196-23197 23208 23234 27300 27302 27311 30033 30035-30038 30065 36729-36730 36732 36734 36763 36784-36785 36787 36805 36807-36809 36816 36861-36862 48990 49009 49012 49019 49093 49095 49104https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/412/727?format=asciiOpticaldefaultJ/MNRAS/412/727/table1Visual classifications and automated parameters for 984 galaxiesClassAutomated classification (1)meta.code.classintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPlateSDSS plate numbermeta.id;instr.plateintMJDSDSS MJD numberdtime.epochintFiberSDSS Fibre numbermeta.id;meta.mainintSDSS-JFull SDSS-Name (derived from ObjID)meta.id;meta.maincharObjIDSDSS ObjID designationmeta.id;meta.maincharRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainuMAGK-corrected absolute u magnitudemagphys.magAbsfloatgMAGK-corrected absolute g magnitudemagphys.magAbsfloatrMAGK-corrected absolute r magnitudemagphys.magAbsfloatiMAGK-corrected absolute i magnitudemagphys.magAbsfloatzMAGK-corrected absolute z magnitudemagphys.magAbsfloatNUVMAGGALEX K-corrected absolute NUV magnitudemagphys.magAbsfloatFUVMAGGALEX K-corrected absolute FUV magnitudemagphys.magAbsdoublenullableR50SDSS Petrosian radius that encompass 50% of the total Petrosian fluxarcsecphys.angSize;srcfloatR90SDSS Petrosian radius that encompass 90% of the total Petrosian fluxarcsecphys.angSize;srcfloatb/aAxis ratio b/aphys.angSize;arith.ratiofloatB/TGIM2d bulge fraction B/Tphys.luminosity;arith.ratiofloats2Smoothness parametersrc.morph.paramfloatInclInclinationdegsrc.orbital.inclinationfloatBC[1/3] Visual Classification from bulge class caracteristics (BC) (1)meta.code.classintFE[1/3] Visual Classification from features caracteristics (FEAT) (1)meta.code.classintAR[1/3] Visual Classification from spiral arms caracteristics (ARMS) (1)meta.code.classintBA[1/3] Visual Classification from bars caracteristics (BAR) (1)meta.code.classintCL[1/3] Visual Classification from clumps caracteristics (CLUMPS) (1)meta.code.classintRI[1/3] Visual Classification from ring caracteristics (RING) (1)meta.code.classintDU[1/3] Visual Classification from dust caracteristics (DUST) (1)meta.code.classintDI[1/3] Visual Classification from disturbed caracteristics (DIST) (1)meta.code.classintIN[1/3] Visual Classification from interacting caracteristics (INT) (1)meta.code.classintSDSSDisplay the SDSS data for this galaxymeta.ref.urlchar