J/ApJ/723/251ivo://CDS.VizieR/J/ApJ/723/251doi:10.26093/cds/vizier.17230251CDSChiboucas K.Tully R.B.Marzke R.O.Trentham N.Ferguson H.C.,Hammer D.Carter D.Khosroshahi H.2018-01-04T08:22:14Z2012-08-10T10:20:36ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxiesphotometryhst-photometryredshiftedspectroscopygalaxy-classification-systemsKeck/LRIS multi-object spectroscopy has been carried out on 140 of some of the lowest and highest surface brightness faint (19<R<22) dwarf galaxy candidates in the core region of the Coma Cluster. These spectra are used to measure redshifts and establish membership for these faint dwarf populations. The primary goal of the low surface brightness sample is to test our ability to use morphological and surface brightness criteria to distinguish between Coma Cluster members and background galaxies using high resolution Hubble Space Telescope/Advanced Camera for Surveys images. Candidates were rated as expected members, uncertain, or expected background. From 93 spectra, 51 dwarf galaxy members and 20 background galaxies are identified. Our morphological membership estimation success rate is ~100% for objects expected to be members and better than ~90% for galaxies expected to be in the background. We confirm that low surface brightness is a very good indicator of cluster membership. High surface brightness galaxies are almost always background with confusion arising only from the cases of the rare compact elliptical (cE) galaxies. The more problematic cases occur at intermediate surface brightness. Many of these galaxies are given uncertain membership ratings, and these were found to be members about half of the time. In a sample of 47 high surface brightness, ultracompact dwarf candidates, 19 objects have redshifts which place them in the Coma Cluster, while another 6 have questionable redshift measurements but may also prove to be members.2010ApJ...723..251Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/723/251CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/42 : GMP catalogue: galaxies in the Coma cluster (Godwin+ 1983)J/MNRAS/411/2439 : Coma Treasury Survey. Structural parameters (Hoyos+, 2011)J/MNRAS/404/1745 : Dwarf galaxies in Coma supercluster (Mahajan+, 2010)J/MNRAS/392/1265 : Faint galaxies in Coma cluster spectroscopy (Smith+, 2009)J/ApJS/175/462 : Spectroscopy of Coma early-type galaxies (Corsini+, 2008)J/ApJS/169/225 : Photometry in the Coma cluster (Eisenhardt+, 2007)J/A+A/451/1159 : BVRI imaging of the Coma cluster (Adami+, 2006)J/A+A/459/679 : RB photometry of LSBG in Coma (Adami+, 2006)J/ApJ/602/664 : Morphology of galaxies in Coma cluster (Gutierrez+, 2004)J/A+A/395/753 : Spectroscopy of Coma galaxies. II. (Wegner+, 2002)J/AJ/121/2331 : SDSS redshifts in the Coma cluster (Castander+, 2001)J/ApJS/137/279 : Spectroscopic Survey in Coma (Mobasher+, 2001)J/A+A/296/643 : LSB galaxies in Coma (Karachentsev+ 1995)J/A+AS/111/265 : Velocities in Coma cluster (Biviano+ 1995)J/ApJS/97/77 : Catalog of Coma Cluster Galaxies (Doi+ 1995)J/MNRAS/243/390 : Galaxy redshift survey in a Coma (Karachentsev+ 1990)http://astronomy.swin.edu.au/coma : Coma Cluster Treasury Survey homepagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/723/251https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/723/251http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/723/251https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/723/251https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/723/251http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/723/251GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/723/251/table2 (LRIS (membership test sample) redshift results)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/723/251/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/723/251/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/723/251/table2?GETtext/xml+votable180.050000true194.858528.01777780.0055555555555555566/103792.3657755224268815e-19 2.565265938961496e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/723/251?format=asciiOpticaldefaultJ/ApJ/723/251/table2LRIS (membership test sample) redshift resultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSStatus (Mm, Bg, Un, PM, or PB) (1)meta.code.membercharID[10162/4042826] Identification numbermeta.id;meta.mainintf_ID[he] Note on the observation (2)meta.codecharPT? [1/5] Membership probability defined by N.T. on HST/ACS image (3)stat.probability;obs.imageintnullablePF? [1/4] Membership probability defined by H.F. on HST/ACS image (3)meta.code.memberintnullableRmag[18.68/23.41]? R-band magnitude (4)magphot.mag;em.opt.Rfloatnullablef_Rmag[f] Blended photometry (2)meta.codecharF814Wc? HST/ACS F814W magnitude; corrected (5)magphot.mag;em.opt.IfloatnullableF814W? HST/ACS F814W magnitude (5)magphot.mag;em.opt.IfloatnullableB-V? (B-V) color index (3" aperture) (4)magphot.color;em.opt.B;em.opt.Vfloatnullablef_B-V[f] Blended photometry (2)meta.codecharg-I? (F475W-F814W) color index (2.25" aperture)magphot.color;em.opt.V;em.opt.Ifloatnullablemu0? Central surface brightness ({mu}_0_(R))mag.arcsec**-2phot.mag.sbfloatnullablemue? Mean effective surface brightness (<{mu}_e,F814W_>)mag.arcsec**-2phot.mag.sbfloatnullableRAJ2000[12/13] Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000[27/28] Degree of declination (J2000)pos.eq.dec;meta.mainczA? Absorption redshiftkm/sphys.veloc;pos.heliocentricintnullablee_czA? czA uncertainty (6)km/sstat.errorintnullableRfx? Relative flux (in 10^-16^erg/s/cm2/{AA})aW.m**-2.nm**-1phot.flux;arith.ratiofloatnullableczE? Emission redshiftkm/sphys.veloc;pos.heliocentricintnullablef_czE[g] redshift from red-side (2)meta.codechare_czE? czE uncertaintykm/sstat.errorintnullableS/N[3.7/61.1]? Signal to noise ratio per Angstrom around 5000{AA}stat.snrfloatnullableMTypeMorphological typesrc.morph.typecharA06Cross-match with Adami et al., 2006, Cat. J/A+A/451/1159, within 1.5"meta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.refchar