J/ApJ/891/144ivo://CDS.VizieR/J/ApJ/891/144doi:10.26093/cds/vizier.18910144CDSCarlsten S.G.Greco J.P.Beaton R.L.Greene J.E.2024-10-07T20:11:10Z2023-12-22T14:14:39ZCDS support team

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

cds-question@unistra.frdwarf-galaxiesphotometryvisible-astronomytwo-color-diagramsredshiftedlocal-groupWe present the results of an extensive search for dwarf satellite galaxies around 10 primary host galaxies in the Local Volume (LV, D<12Mpc) using archival CFHT/MegaCam imaging data. The hosts span a wide range in properties, with stellar masses ranging from that of the Large Magellanic Cloud to ~3 times that of the Milky Way. The surveyed hosts are: NGC 1023, NGC 1156, NGC 2903, NGC 4258, NGC 4565, NGC 4631, NGC 5023, M51, M64, and M104. We detect satellite candidates using a consistent semi-automated detection algorithm that is optimized for the detection of low surface brightness objects. Depending on the host, our completeness limit is Mg~-8 to -10 (assuming the distance of the host). We detect objects with surface brightness down to {mu}_0,g_~26mag/arcsec^2^ at >=90% completeness. The survey areas of the six best-surveyed hosts cover most of the inner projected R<150kpc area, which will roughly double the number of massive LV hosts surveyed at this level of area and luminosity completeness, once distances are measured for the candidates. The number of detected candidates range from 1 around M64 to 33 around NGC 4258. In total, 155 candidates are found, of which 93 are new. While we defer an analysis of the satellite luminosity functions of the hosts until distance information is available for the candidates, we do show that the candidates are primarily red, spheroidal systems with properties roughly consistent with known satellites in the Local Group.2020ApJ...891..144Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/891/144CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/cfht : Log of CFHT Exposures (CADC, 1979-)I/284 : The USNO-B1.0 Catalog (Monet+ 2003)II/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)I/345 : Gaia DR2 (Gaia Collaboration, 2018)VIII/77 : HI spectral properties of galaxies (Springob+, 2005)VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)VII/258 : Quasars and Active Galactic Nuclei (13th Ed.) (Veron+ 2010)V/139 : The SDSS Photometric Catalog, Release 9 (Adelman-McCarthy+, 2012)J/A+AS/127/409 : New nearby dwarf galaxy cand. list (Karachentseva+ 1998)J/A+AS/133/181 : BVI imaging of 20 irregular galaxies (Makarova+ 1998)J/AJ/126/2152 : Cluster And Infall Region Nearby Survey. I (Rines+, 2003)J/AJ/128/2170 : H{alpha} imaging of irregular galaxies (Hunter+, 2004)J/ApJS/173/185 : GALEX UV atlas of nearby galaxies (Gil de Paz+, 2007)J/AJ/140/1093 : NGC7332/7339 & NGC1156 HI sources from AGES (Minchin+, 2010)J/PASP/122/1397 : Spitzer Survey of Stellar Structure in Gal. (Sheth+, 2010)J/AJ/144/4 : Dwarf galaxies in the Local Group (McConnachie+, 2012)J/AJ/145/101 : Updated nearby galaxy catalog (Karachentsev+, 2013)J/MNRAS/445/899 : LVL SEDs and physical properties (Cook+, 2014)J/MNRAS/446/120 : ATLAS3D project. XXIX (Duc+, 2015)J/ApJ/813/L15 : Dwarf galaxies in Fornax cluster from NGFS (Munoz+, 2015)J/ApJ/833/167 : PAndAS view of Andromeda satellites. II. (Martin+, 2016)J/ApJ/857/104 : Low surface brightness galaxies from HSC-SSP (Greco+, 2018)J/MNRAS/479/5343 : Nearby dwarf galaxy in Magellanic bridge (Koposov+, 2018)J/ApJ/868/55 : Large-scale structure of M31 halo. II. (McConnachie+, 2018)J/ApJS/235/23 : LEGUS galaxies1 observations (Sabbi+, 2018)J/A+A/629/A18 : Deep VI phot. of 15 dwarf galaxy candidates (Mueller+, 2019)J/ApJ/878/18 : NGVS. XXIII. Nuclear star clusters (Sanchez-Janssen+, 2019)http://www.cadc-ccda.hia-iha.nrc-cnrc.gc.ca/en/cfht/ : CFHT archive on CADChttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/891/144https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/891/144http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/891/144https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/891/144https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/891/144http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/891/144GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/891/144/table1 (Host properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/891/144/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/891/144/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/891/144/table1?GETtext/xml+votable180.050000true40.139.063330.005555555555555556Cone search capability for table J/ApJ/891/144/dwarfs (NGC 1023 (Table 3), NGC 1156 (Table 4), NGC 2903 (Table 5), NGC 4258 (Table 6), NGC 4565 (Table 7), NGC 4631 (Table 8), NGC 5023 (Table 9), M51 (Table 10), M64 (Table 11), M104 (Table 12) dwarf sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/891/144/dwarfs?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/891/144/dwarfs?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/891/144/dwarfs?GETtext/xml+votable180.050000true38.427916738.872250.0055555555555555565/2690 6/794 816 2371-2372 2374-2375 2377 2380 4511 4533 4554 10754-10755 10846-10847 10977-10982 10992-10994 11026-11027 11030 25081-25084 25086 28015 28135 28140-28141 28143 28152https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/891/144?format=asciiOpticaldefaultJ/ApJ/891/144/table1Host propertiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHostGalaxy namemeta.id;meta.maincharRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainSimbadSimbad column added by the CDSmeta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlcharLEDAmeta.ref.urlcharDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainDist[5.3/12] DistanceMpcpos.distance;pos.heliocentricfloatr_DistReference on Dist (1)meta.ref;pos.framecharVcirc[55/380] Velocitykm/sphys.velocintr_VcircReference on Vcirc (1)meta.ref;pos.framecharMs[0.04/12] Stellar mass1e+10solMassphys.massfloatr_MsReference on Ms (1)meta.ref;pos.framecharDepthMedian depth throughout the surveyed area in Filtstime.expocharCovCoverage fraction of the inner projected 150kpc area and the projected virial area%phys.areacharNgNumber of dwarf candidates for this host; column added by CDSmeta.numberintKsMag[-25/-19.3] Absolute Ks-band magnitudemagphys.magAbs;em.IR.Kfloatr_KsMagReference on KsMag (1)meta.ref;pos.framecharRvir[100/650] Virial radiuskpcphys.size.radiusintr_RvirReference on Rvir (1)meta.ref;pos.framecharcz[379/1261] Velocitykm/sphys.velocintr_czReference on cz (1)meta.ref;pos.framecharFiltFilter (g/i or g/r)meta.notecharJ/ApJ/891/144/dwarfsNGC 1023 (Table 3), NGC 1156 (Table 4), NGC 2903 (Table 5), NGC 4258 (Table 6), NGC 4565 (Table 7), NGC 4631 (Table 8), NGC 5023 (Table 9), M51 (Table 10), M64 (Table 11), M104 (Table 12) dwarf sampler_ONameReference on OName (4)meta.ref;pos.framecharNameName of the dwarf candidatemeta.id;meta.maincharStWhether the galaxy was found in the visual search of the star mask cutoutsmeta.codecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHostHost galaxy namemeta.id.parentcharRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainTypeMorphological type (1)src.morph.typechargmag[9.4/23.4] CFHT/MegaCam g-band AB magnitude; corrected for Galactic extinction (2)magphot.mag;em.opt.Bfloate_gmag[0.01/0.7]? Uncertainty on the gmagmagstat.error;phot.magfloatnullablef_gmag[ds] Flag on photometry (3)meta.codecharimag[12.2/23]? CFHT/MegaCam i-band AB magnitude; corrected for Galactic extinction (2)magphot.mag;em.opt.Ifloatnullablee_imag[0.01/0.7]? Uncertainty on the imagmagstat.error;phot.magfloatnullableg-i[0.06/1.1]? g-i color index (2)magphot.color;em.opt.B;em.opt.Ifloatnullablee_g-i[0.01/0.4]? g-i uncertaintymagstat.errorfloatnullablere[2.2/71.1]? Effective radiusarcsecphys.angSizefloatnullablee_re[0.04/19.1]? re uncertaintyarcsecstat.errorfloatnullableSimbadNameSimbad column added by the CDSmeta.idcharnullableONameOther name (s)meta.idcharmu[21.7/28.4]? Surface brightness; {mu}_e,r_ or {mu}_e,i_mag.arcsec**-2phot.mag.sbfloatnullablee_mu[0.01/0.4]? mu uncertaintymag.arcsec**-2stat.errorfloatnullablel_Dtrgb? Upper limit flag on Dtrgbmeta.code.errorcharDtrgb[3.6/12.5]? Tip of RGB distanceMpcpos.distancefloatnullablef_DtrgbA: Not a TRGB distance but a brightest star's distancemeta.codecharr_DtrgbReference on Dtrgb (4)meta.ref;pos.framecharcz[135/109208]? Velocitykm/sphys.velocintnullabler_czReference on cz (4)meta.ref;pos.framechar