J/ApJ/813/L15ivo://CDS.VizieR/J/ApJ/813/L15doi:10.26093/cds/vizier.18139015CDSMunoz R.P.Eigenthaler P.Puzia T.H.Taylor M.A.Ordenes-Briceno Y.,Alamo-Martinez K.Ribbeck K.X.Angel S.Capaccioli M.Cote P.,Ferrarese L.Galaz G.Hempel M.Hilker M.Jordan A.Lancon A.,Mieske S.Paolillo M.Richtler T.Sanchez-Janssen R.Zhang H.2019-04-26T09:56:56Z2016-03-21T16:07:59ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxiesvisible-astronomygalaxy-classification-systemssurveysinfrared-photometrybroad-band-photometryWe report the discovery of 158 previously undetected dwarf galaxies in the Fornax cluster central regions using a deep coadded u-, g-, and i-band image obtained with the Dark Energy Camera wide-field camera mounted on the 4-m Blanco telescope at the Cerro Tololo Interamerican Observatory as part of the Next Generation Fornax Survey (NGFS). The new dwarf galaxies have quasi-exponential light profiles, effective radii 0.1<r_e_<2.8kpc, and average effective surface brightness values 22.0<{mu}_i_<28.0mag/arcsec2. We confirm the existence of ultra-diffuse galaxies (UDGs) in the Fornax core regions that resemble counterparts recently discovered in the Virgo and Coma galaxy clusters. We also find extremely low surface brightness NGFS dwarfs, which are several magnitudes fainter than the classical UDGs. The faintest dwarf candidate in our NGFS sample has an absolute magnitude of M_i_=-8.0mag. The nucleation fraction of the NGFS dwarf galaxy sample appears to decrease as a function of their total luminosity, reaching from a nucleation fraction of >75% at luminosities brighter than M_i_~=-15.0mag to 0% at luminosities fainter than M_i_~=-10.0mag. The two-point correlation function analysis of the NGFS dwarf sample shows an excess on length scales below ~100 kpc, pointing to the clustering of dwarf galaxies in the Fornax cluster core.2015ApJ...813L..15Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/813/L15CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/180 : Galaxies in Fornax Cluster and five nearby groups (Ferguson+ 1990)J/AJ/144/4 : Dwarf galaxies in the Local Group (McConnachie+, 2012)J/ApJS/197/21 : The Carnegie-Irvine Galaxy Survey (CGS). I. (Ho+, 2011)J/AJ/137/498 : UCD and bright GC in Fornax (Gregg+, 2009)J/A+A/463/503 : Early-type dwarf galaxies in Fornax cluster (Mieske+, 2007)J/A+A/418/445 : FCOS Ultra Compact Dwarf galaxies radial vel. (Mieske+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/813/L15https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/813/L15http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/813/L15https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/813/L15https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/813/L15http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/813/L15GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/813/L15/table1 (Dwarf galaxies in the core of the Fornax cluster)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/813/L15/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/813/L15/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/813/L15/table1?GETtext/xml+votable180.050000true53.2534583-35.60960830.0055555555555555565/8633 6/34531 34537 34540 34541https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/813/L15?format=asciiOpticalInfrareddefaultJ/ApJ/813/L15/table1Dwarf galaxies in the core of the Fornax clusterrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNGFSIdentification (HHMMSS+DDMMSS; J2000)meta.id;meta.maincharRAJ2000[3] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[34/36] Degree of Declination (J2000)pos.eq.dec;meta.mainimag[13.5/23.6]? The i band magnitudemagphot.mag;em.opt.IfloatnullableiMag[-18/-7.9]? The i band absolute magnitude (1)magphys.magAbsfloatnullablen[0.08/2.3]? Sersic index (2)stat.fit.paramfloatnullableReff1[0.9/28.1]? Effective radius in arcsecondsarcsecphys.angSizefloatnullableReff2[0.09/2.8]? Effective radius in kpc (1)kpcphys.size.radiusfloatnullableType[ox] Morphological type (3)meta.code;src.morphcharOIDReference source identifier (4)meta.id.crosscharSimbadSimbad column added by the CDSmeta.ref.urlchar