J/AJ/144/4ivo://CDS.VizieR/J/AJ/144/4doi:10.26093/cds/vizier.51440004CDSMcConnachie A.W.2025-11-24T10:53:59Z2013-09-02T06:29:55ZCDS support team

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

cds-question@unistra.frgalaxiesastrometryradial-velocitymetallicityextinctiongalaxy-kinematicsvisible-astronomybroad-band-photometryPositional, structural, and dynamical parameters for all dwarf galaxies in and around the Local Group are presented, and various aspects of our observational understanding of this volume-limited sample are discussed. Over 100 nearby galaxies that have distance estimates reliably placing them within 3Mpc of the Sun are identified. This distance threshold samples dwarfs in a large range of environments, from the satellite systems of the MW and M31, to the quasi-isolated dwarfs in the outer regions of the Local Group, to the numerous isolated galaxies that are found in its surroundings. It extends to, but does not include, the galaxies associated with the next nearest groups, such as Maffei, Sculptor, and IC 342. Our basic knowledge of this important galactic subset and their resolved stellar populations will continue to improve dramatically over the coming years with existing and future observational capabilities, and they will continue to provide the most detailed information available on numerous aspects of dwarf galaxy formation and evolution. Basic observational parameters, such as distances, velocities, magnitudes, mean metallicities, as well as structural and dynamical characteristics, are collated, homogenized (as far as possible), and presented in tables that will be continually updated to provide a convenient and current online resource. As well as discussing the provenance of the tabulated values and possible uncertainties affecting their usage, the membership and spatial extent of the MW sub-group, M31 sub-group, and the Local Group are explored. The morphological diversity of the entire sample and notable sub-groups is discussed, and timescales are derived for the Local Group members in the context of their orbital/interaction histories. The scaling relations and mean stellar metallicity trends defined by the dwarfs are presented, and the origin of a possible "floor" in central surface brightness (and, more speculatively, stellar mean metallicity) at faint magnitudes is considered.2012AJ....144....4Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/144/4CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/34 : ESO/Uppsala Survey of the ESO(B) Atlas (Lauberts 1982)J/MNRAS/411/1013 : CaII triplet in Sextans dSph galaxy (Battaglia+, 2011)J/ApJ/733/46 : Velocity measurements in Segue 1 (Simon+, 2011)J/AJ/139/1168 : CaII spectroscopy of SMC fields stars (Parisi+, 2010)J/ApJ/710/1664 : BV photometry in Leo IV and Leo V dSphs (de Jong+, 2010)J/ApJ/711/361 : Local Group dE galaxies. II. (Geha+, 2010)J/ApJ/723/1632 : Abundance spreads in Bootes I and Segue 1 (Norris+, 2010)J/PAZh/35/829 : Star clusters in IC 10 (Tikhonov+, 2009)J/ApJ/705/328 : Abundance measurements in Sculptor dSph (Kirby+, 2009)J/MNRAS/397/1748 : Spectroscopic study of Segue 2 (Belokurov+, 2009)J/A+A/485/41 : VLT spectroscopy of blue massive stars in NGC55J/MNRAS/384/1544 : Surface photometry of local dwarf galaxies (Sharina+, 2008)J/AJ/135/836 : Calcium triplet index in LMC stars (Carrera+, 2008)J/AJ/133/715 : Dwarf galaxies of the Local Group (Whiting+, 2007)J/AJ/133/270 : Metallicities and ages in Leo II dSph (Koch+, 2007)J/ApJ/670/346 : M giant stars in Sagittarius dwarf galaxy. V. (Chou+, 2007)J/A+A/459/423 : VI and [Fe/H] of Fornax dSph RGB stars (Battaglia+, 2006)J/AJ/131/332 : Velocities of individual stars in NGC 205 (Geha+, 2006)J/AJ/131/895 : Stars in the Carina dwarf spheroidal galaxy (Koch+, 2006)J/AJ/129/1465 : Spectroscopy of red giants in the LMC bar (Cole+, 2005)J/AJ/128/16 : HIPASS Bright Galaxy Catalog (Koribalski+, 2004)J/AJ/124/3222 : VI photometry of Draco and UMi galaxies (Bellazzini+, 2002)J/MNRAS/327/918 : CaII in extragalactic red giants (Tolstoy+, 2001)J/A+A/366/428 : HI observations of nearby dwarf galaxiesJ/A+AS/147/187 : Second list of the Karachentsev catalog (Huchtmeier+, 2000)J/A+AS/127/409 : New nearby dwarf galaxy candidates listhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/144/4https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/144/4http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/144/4https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/144/4https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/144/4http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/144/4GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/144/4/catalog (Catalog of the observed properties of dwarf galaxies in and around the Local Group (tables 1--5 of paper))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/144/4/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/144/4/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/144/4/catalog?GETtext/xml+votable180.050000true266.416667-29.0077780.0055555555555555566/619 2110 2155 2216 2234 2272 2297 2565 2572-2573 2604 2611 2622 2628 2668 2676 2709 2746 2755 2758 2767 2774 2777 2789 2830 2852 3042 3483 4410 4419 5287 5939 6021 7265 7416 8745 8908 10153 10183 10308 10444 10532 10607 10769 10910 11120 11691 13505 13637 13655 14149 16459 16544 17165 17229 18041 18926 19833 19990 20262 20416 20437 20440 22039 26047 26487 26858 26980 27000 27207 27351 27580 27926 28136 28361 28631 28636 28666 28830 29699 29718 31692 33096 33295 35206 35482 35514 35536 35720 35969 38841 38846 39100 39860 41122 41987 45423 46597 48035 489423.322582951404819e-19 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/144/4?format=asciiOpticaldefaultJ/AJ/144/4/catalogCatalog of the observed properties of dwarf galaxies in and around the Local Group (tables 1--5 of paper)E_R1? Positive error in R1arcminstat.error;stat.maxfloatnullablee_R1? Negative error in R1arcminstat.errorfloatnullablemuV? Central surface brightness {mu}_V_ (14)mag.arcsec**-2phot.mag.sbfloatnullableCom4Comments about masses and kinematicsmeta.notechar[Fe/H]? Mean stellar metallicity (27)log(Sun)phys.abund.Z;stat.meanfloatnullableu_[Fe/H][:] Uncertainty flag on [Fe/H]meta.code.error;phys.abund.Fechare_[Fe/H]? Error in [Fe/H]log(Sun)stat.error;phys.abund.FefloatnullableMethTechnique used to estimate stellar metallicity (28)meta.code;obscharRef5Reference, in refs.dat filemeta.ref;pos.framecharCom5Comment on metallicity estimationsmeta.notecharu_R1[:] Uncertainty flag on R1meta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSubGThe galactic subgroup (MW, M31 or Rest) (1)meta.id.parentcharn_NameIndicates whether the galaxy is associated with Milky Way (G), M31 (A), the Local Group (L), or is nearby neighbors (N)meta.notecharNameGalaxy namemeta.id;meta.maincharONameCommon alternative namemeta.idcharf_OName[*] Flag for NGC 4167 (2)meta.codecharMTypeMorphological (Hubble) type (3)src.morph.typecharRAJ2000? Hour of Right Ascension (J2000)pos.eq.ra;meta.mainnullableDEJ2000? Degree of Declination (J2000)pos.eq.dec;meta.mainnullableRef1Original publication, in refs.dat filemeta.ref;pos.framecharf_Ref1[abe] Notes about discovery (4)meta.codecharCom1Comments about basic informationmeta.notecharGLON? Galactic longitude ldegpos.galactic.lonnullableGLAT? Galactic latitude bdegpos.galactic.latfloatnullableE(B-V)? Foreground extinction (6)magphot.color.excessfloatnullable(m-M)? Distance modulus (m-M)_0_ (7)magphot.mag.distModfloatnullableu_(m-M)[:lbk ] Uncertain or fixed distance (5)meta.code.errorcharE_(m-M)? Positive error in (m-M)magstat.error;stat.maxfloatnullablee_(m-M)? Negative error in (m-M)magstat.errorfloatnullableD? Heliocentric distance (7)kpcpos.distance;pos.heliocentricintnullableu_D[:] Uncertainty flag on Dmeta.code.errorcharE_D? Positive error in Dkpcstat.error;stat.maxintnullablee_D? Negative error in Dkpcstat.errorintnullableHRV? Heliocentric radial velocity (9)km/sspect.dopplerVeloc;pos.heliocentricfloatnullablef_HRV[cdfmpr] Flag on HRV (10)meta.codechare_HRV? Error in HRVkm/sstat.errorfloatnullableD(MW)? Distance for the Galactocentric (MW) frame of reference (10)kpcpos.distance;pos.galactocentricintnullableV(MW)? Velocity for the Galactocentric (MW) frame of reference (10)km/sphys.veloc;pos.galactocentricintnullableD(M31)? Distance for the M31 frame of reference (10)kpcpos.distanceintnullableV(M31)? Velocity for the M31 frame of reference (10)km/sphys.velocintnullableD(LG)? Distance for the Local Group frame of reference (10)kpcpos.distanceintnullableV(LG)? Velocity for the Local Group frame of reference (10)km/sphys.velocintnullableRef2Reference, in refs.dat filemeta.ref;pos.framecharf_Ref2Details on Ref2 (8)meta.codecharS[h] Presence of surrounding stream (11)meta.codecharVmag? Apparent magnitude in V; VEGA system (12)magphot.mag;em.opt.Vfloatnullableu_Vmag[:kl ] Uncertain or derived Vmag (13)meta.code.errorcharE_Vmag? Positive error in Vmagmagstat.error;stat.maxfloatnullablee_Vmag? Negative error in Vmagmagstat.error;phot.magfloatnullableR1? Radius containing half the light of the galaxy, measured on the semimajor axis (see Section 4 for further details)arcminphys.angSizefloatnullablef_muV[:befg ] Note on muV (13)meta.codecharE_muV? Positive error in muVmag.arcsec**-2stat.error;stat.maxfloatnullablee_muV? Negative error in muVmag.arcsec**-2stat.errorfloatnullablePA[-69-330]? Position angle of major axis, measured in degrees east from north (16)degpos.posAngintnullablef_PA[:ci ] Note on PA (13)meta.codechare_PA? Error in PAdegstat.errorintnullableEll? Ellipticity {epsilon}=1-b/a, where a and b are the semimajor and semiminor axes (16)src.ellipticityfloatnullablef_Ell[:j] Note on Ell (13)meta.codechare_Ell? Uncertainty in Ellstat.errorfloatnullableVMag? Absolute visual magnitude M_V_ (15)magphys.magAbsfloatnullablef_VMag[:d] Flag on VMag (13)meta.codecharE_VMag? Positive error in VMagmagstat.error;stat.maxfloatnullablee_VMag? Negative error in VMagmagstat.error;phot.magfloatnullableR2? Half-light radius (17)pcphys.size.radiusintnullableu_R2[:] Uncertainty flag on R2meta.code.errorcharE_R2? Positive error on R2pcstat.error;stat.maxintnullablee_R2? Negative error on R2pcstat.errorintnullablemuEff? The mean surface brightness within the isophote defined by the half-light radius (18)mag.arcsec**-2phot.mag.sb;stat.meanfloatnullableRef3Reference, in refs.dat filemeta.ref;pos.framecharCom3Comments about luminosity ans structuremeta.notecharMass? Mass of the galaxy in stellar masses (19)1e+06solMassphys.massdoublenullablel_sigma*[<=] Upper limit on sigmameta.code.errorcharsigma*? The observed velocity dispersion of the stellar component {sigma}* (20)km/sphys.veloc.dispersionfloatnullablef_sigma*[cj] Flag on sigma* (21)meta.codecharE_sigma*? Positive error in sigma*km/sstat.error;stat.maxfloatnullablee_sigma*? Negative error in sigma*km/sstat.errorfloatnullablevsini*? The observed rotational velocity of the stellar component (22)km/sphys.veloc.rotatfloatnullablef_vsini*[N] No rotational signature observed (22)meta.codechare_vsini*? Error in vsini*km/sstat.error;phys.veloc.rotatfloatnullableM.HI? Mass of HI in each galaxy (23)1e+06solMassphys.massdoublenullablef_M.HI[:befk] Ambiguous HI detection (24)meta.codecharl_sigHIUpper limit on sigmaHImeta.code.errorcharsigHI? The observed velocity dispersion of the HI component (25)km/sphys.veloc.dispersionfloatnullableu_sigHI[:dg] Uncertainty flag on sigHI (26)meta.code.errorchare_sigHI? Error in sigHIkm/sstat.errorfloatnullablel_v.HI[<=] Upper limit on v.HImeta.code.errorcharv.HI? The observed rotational velocity of the HI component (22)km/sphys.veloc.rotatfloatnullableu_v.HI[:iN] Uncertainty flag on v.HI (26)meta.code.errorchare_v.HI? Error in v.HIkm/sstat.errorfloatnullableMdyn? Dynamical mass within the observed half-light radius M_dyn_(<=r_h_) (see Section 5 for further explanations)1e+06solMassphys.massfloatnullableRef4Reference, in refs.dat filemeta.ref;pos.framecharf_Ref4[h] Flag on Ref (h = In the reference (234), see their Note added in proof.meta.codecharSimbadNameSimbad column added by the CDSmeta.idcharnullableJ/AJ/144/4/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference codemeta.notecharBibCodeBibliographic codemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notechar