J/A+A/620/A165ivo://CDS.VizieR/J/A+A/620/A165doi:10.26093/cds/vizier.36200165CDSVenhola A.Peletier R.Laurikainen E.Salo H.Iodice E.Mieske S.,Hilker M.Wittmann C.Lisker T.Paolillo M.Cantiello M.Janz J.,Spavone M.D'Abrusco R.van de Ven G.Napolitano N.Verdoes Kleijn G.,Maddox N.Capaccioli M.Grado A.Valentijn E.Falcon-Barroso J.,Limatola L.2022-09-02T08:24:17Z2018-12-11T08:13:46ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxiesphotometrygalaxy-classification-systemsThe Fornax Deep Survey (FDS), an imaging survey in the u', g', r', and i'-bands, has a supreme resolution and image depth compared to the previous spatially complete Fornax Cluster Catalog (FCC). Our new data allows us to study the galaxies down to r'- band magnitude mr~=21mag (Mr'~=-10.5mag), which opens a new parameter regime to investigate the evolution of dwarf galaxies in the cluster environment. After the Virgo cluster, Fornax is the second nearest galaxy cluster to us, and with its different mass and evolutionary state, it provides a valuable comparison that makes it possible to understand the various evolutionary effects on galaxies and galaxy clusters. These data provide an important legacy dataset to study the Fornax cluster. We aim to present the Fornax Deep Survey (FDS) dwarf galaxy catalog, focusing on explaining the data reduction and calibrations, assessing the quality of the data, and describing the methods used for defining the cluster memberships and first order morphological classifications for the catalog objects. We also describe the main scientific questions that will be addressed based on the catalog. This catalog will also be invaluable for future follow-up studies of the Fornax cluster dwarf galaxies. As a first step we used the SExtractor fine-tuned for dwarf galaxy detection, to find galaxies from the FDS data, covering a 26deg^2^ area of the main cluster up to its virial radius, and the area around the Fornax A substructure. We made 2D-decompositions of the identified galaxies using GALFIT, measure the aperture colors, and the basic morphological parameters like concentration and residual flux fraction. We used color-magnitude, luminosity-radius and luminosity-concentration relations to separate the cluster galaxies from the background galaxies. We then divided the cluster galaxies into early- and late-type galaxies according to their morphology and gave first order morphological classifications using a combination of visual and parametric classifications. Our final catalog includes 14,095 galaxies. We classify 590 galaxies as being likely Fornax cluster galaxies, of which 564 are dwarfs (Mr'>-18.5mag) consisting our Fornax dwarf catalog. Of the cluster dwarfs we classify 470 as early-types, and 94 as late-type galaxies. Our final catalog reaches its 50% completeness limit at magnitude Mr'=-10.5mag and surface brightness <{mu}_e,r'_=26mag/arcsec^2^, which is approximately three magnitudes deeper than the FCC. Based on previous works and comparison with a spectroscopically confirmed subsample, we estimate that our final Fornax dwarf galaxy catalog has <~10% contamination from the background objects.2018A&A...620A.165Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/620/A165CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/581/A10 : VEGAS: A VST Early-type GAlaxy Survey (Capaccioli+, 2015)J/A+A/608/A142 : Fornax Deep Survey with VST III. LSB galaxies (Venhola+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/620/A165https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/620/A165http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/620/A165https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/620/A165https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/620/A165http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/620/A165GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/620/A165/dwarf (Fornax dwarf galaxies catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/620/A165/dwarf?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/620/A165/dwarf?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/620/A165/dwarf?GETtext/xml+votable180.050000true54.2219-34.93840.005555555555555556Cone search capability for table J/A+A/620/A165/dwarfbck (Background galaxies catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/620/A165/dwarfbck?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/620/A165/dwarfbck?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/620/A165/dwarfbck?GETtext/xml+votable180.050000true55.0667-34.94990.0055555555555555564/2158 5/8623 8636 6/34487 34491 34503 34507 34509-34511 34520 34522-34523 34526 34548 34552-34554 35857 35860-35861 35905 35908-35910https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/620/A165?format=asciiOpticaldefaultJ/A+A/620/A165/dwarfFornax dwarf galaxies cataloge_aratUncertainty of axis ratiostat.errordoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTargetName of the object (FDSNN_DWARFNNNa)meta.id;meta.maincharRA_ICRSRight Ascension in degrees (ICRS)degpos.eq.ra;meta.mainDE_ICRSDeclination in degrees (ICRS)degpos.eq.dec;meta.mainPA[] Major Axis position angledegpos.posAngdoublee_PAUncertainty of position angledegstat.errordoubleSimbadSimbad column added by the CDSmeta.ref.urlchararatAxis ratio from the r'-band GALFIT modelphys.size.axisRatiodoublermagr'-band total apparent magnitude from Sersic fitmagphot.mag;em.opt.Rfloate_rmagUncertainty of r'-band total magnitudemagstat.error;phot.magdoublegmagg'-band total apparent magnitude from Sersic fitmagphot.mag;em.opt.Bfloate_gmagUncertainty of g'-band total magnitudemagstat.error;phot.magdoublernuc? r'-band apparent magnitude of nucleusmagphot.mag;em.opt.Rdoublenullablegnuc? g'-band apparent magnitude of nucleusmagphot.mag;em.opt.BdoublenullablereffEffective radius from the r'-band GALFIT modelarcsecphys.angSizedoublee_reffUncertainty of effective radius in arcsecarcsecstat.errordoublenSersic index from the r'-band GALFIT modelstat.fit.paramfloate_nUncertainty of Sersic indexstat.errordoubleumag1? u'-band apparent aperture magnitude within reffmagphot.mag;em.opt.Udoublenullablee_umag1? Uncertainty of u'-band apparent aperture magnitude within reffmagstat.error;pos.cartesian.xdoublenullablegmag1g'-band apparent aperture magnitude within reffmagphot.mag;em.opt.Bfloate_gmag1Uncertainty of g'-band apparent aperture magnitude within reffmagstat.error;phot.magdoublermag1r'-band apparent aperture magnitude within reffmagphot.mag;em.opt.Rfloate_rmag1Uncertainty of r'-band apparent aperture magnitude within reffmagstat.error;phot.magdoubleimag1i'-band apparent aperture magnitude within reffmagphot.mag;em.opt.Ifloate_imag1Uncertainty of i'-band apparent aperture magnitude within reffmagstat.error;phot.magdoubleCConcentration parameter in r'-band (see Section 7.5)stat.paramdoubleRFFResidual Flux Fraction in r'-band (see Section 7.4)phot.flux;arith.ratiodoubleClassMorphological classification (1)src.morphcharRefCross-matched names within 8 arcsec (2)meta.idcharJ/A+A/620/A165/dwarfbckBackground galaxies cataloge_gmagUncertainty of g'-band total magnitudemagstat.error;phot.magdoublegmagg'-band total apparent magnitude from Sersic fitmagphot.mag;em.opt.Bfloatrnuc? r'-band apparent magnitude of nucleusmagphot.mag;em.opt.Rdoublenullablegnuc? g'-band apparent magnitude of nucleusmagphot.mag;em.opt.BdoublenullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTargetName of the object (FDSNN_DWARFNNNa)meta.id;meta.maincharRA_ICRSRight Ascension in degrees (ICRS)degpos.eq.ra;meta.mainindexedDE_ICRSDeclination in degrees (ICRS)degpos.eq.dec;meta.mainindexedPA[] Major Axis position angledegpos.posAngdoublee_PAUncertainty of position angledegstat.errordoublearatAxis ratio from the r'-band GALFIT modelphys.size.axisRatiodoublee_aratUncertainty of axis ratiostat.errordoublermagr'-band total apparent magnitude from Sersic fitmagphot.mag;em.opt.Rfloate_rmagUncertainty of r'-band total magnitudemagstat.error;phot.magdoublereffEffective radius from the r'-band GALFIT modelarcsecphys.angSizedoublee_reffUncertainty of effective radius in arcsecarcsecstat.errordoublenSersic index from the r'-band GALFIT modelstat.fit.paramfloate_nUncertainty of Sersic indexstat.errordoubleumag1? u'-band apparent aperture magnitude within reffmagphot.mag;em.opt.Udoublenullablee_umag1? Uncertainty of u'-band apparent aperture magnitude within reffmagstat.error;pos.cartesian.xdoublenullablegmag1g'-band apparent aperture magnitude within reffmagphot.mag;em.opt.Bfloate_gmag1Uncertainty of g'-band apparent aperture magnitude within reffmagstat.error;phot.magdoublermag1r'-band apparent aperture magnitude within reffmagphot.mag;em.opt.Rfloate_rmag1Uncertainty of r'-band apparent aperture magnitude within reffmagstat.error;phot.magdoubleimag1i'-band apparent aperture magnitude within reffmagphot.mag;em.opt.Ifloate_imag1Uncertainty of i'-band apparent aperture magnitude within reffmagstat.error;phot.magdoubleCConcentration parameter in r'-band (see Section 7.5)stat.paramdoubleRFFResidual Flux Fraction in r'-band (see Section 7.4)phot.flux;arith.ratiodoubleClassMorphological classification (1)src.morphcharRefCross-matched names within 8 arcsec (2)meta.idchar