J/ApJ/922/267ivo://CDS.VizieR/J/ApJ/922/267doi:10.26093/cds/vizier.19220267CDSCarlsten S.G.Greene J.E.Greco J.P.Beaton R.L.Kado-Fong E.2024-12-30T20:08:52Z2023-05-04T09:51:10ZCDS support team

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

cds-question@unistra.frdwarf-galaxiesphotometryvisible-astronomygalaxy-classification-systemssurveysThe structure of a dwarf galaxy is an important probe of the effects of stellar feedback and environment. Using an unprecedented sample of 223 low-mass satellites from the ongoing Exploration of Local Volume Satellites survey, we explore the structures of dwarf satellites in the mass range 10^5.5^<M_*_<10^8.5^M_{sun}_. We survey satellites around 80% of the massive, M_K_{<}-22.4mag, hosts in the Local Volume (LV). Our sample of dwarf satellites is complete to luminosities of M_V_{<}-9mag and surface brightness {mu}_0,V_<26.5mag/arcsec^2^ within at least ~200 projected kpc of the hosts. For this sample, we find a median satellite luminosity of M_V_=-12.4mag, median size of r_e_=560pc, median ellipticity of {epsilon}=0.30, and median Sersic index of n=0.72. We separate the satellites into late- and early-type (29.6% and 70.4%, respectively). The mass-size relations are very similar between them within ~5%, which indicates that the quenching and transformation of a late-type dwarf into an early-type one involves only very mild size evolution. Considering the distribution of apparent ellipticities, we infer the intrinsic shapes of the early- and late-type samples. Combining with literature samples, we find that both types of dwarfs are described roughly as oblate spheroids that get more spherical at fainter luminosities, but early-types are always rounder at fixed luminosity. Finally, we compare the LV satellites with dwarf samples from the cores of the Virgo and Fornax clusters. We find that the cluster satellites show similar scaling relations to the LV early-type dwarfs but are roughly 10% larger at fixed mass, which we interpret as being due to tidal heating in the cluster environments. The dwarf structure results presented here are a useful reference for simulations of dwarf galaxy formation and the transformation of dwarf irregulars into spheroidals.2021ApJ...922..267Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/922/267CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/cfht : Log of CFHT Exposures (CADC, 1979-)VII/292 : DESI Legacy Imaging Surveys DR8 (Duncan, 2022)J/AJ/127/2031 : Catalog of neighboring galaxies (Karachentsev+, 2004)J/ApJS/164/334 : ACS Virgo Cluster Survey. VI (Ferrarese+, 2006)J/AJ/133/504 : Galaxies around CenA/M83 (Karachentsev+, 2007)J/ApJ/660/1186 : VCC galaxies classification with SDSS (Lisker+, 2007)J/A+A/486/697 : Hydra I Cluster Catalogue (HCC) (Misgeld+, 2008)J/MNRAS/386/2311 : CT1 photometry of Antlia early-type galaxies (Smith+, 2008)J/ApJS/182/216 : Surface photometry of Virgo ellipticals (Kormendy+, 2009)J/MNRAS/413/971 : Galaxy And Mass Assembly (GAMA) DR1 (Driver+, 2011)J/MNRAS/414/3699 : Study of hot stellar systems and galaxies (Misgeld+, 2011)J/A+A/526/A114 : Kinematic profiles of Virgo galaxies (Toloba+, 2011)J/AJ/144/4 : Dwarf galaxies in the Local Group (McConnachie+, 2012)J/AJ/145/101 : Updated nearby galaxy catalog (Karachentsev+, 2013)J/A+A/570/A69 : GALEX Ultraviolet Virgo Cluster Survey. IV. (Boselli+, 2014)J/ApJ/813/L15 : Dwarf galaxies in Fornax cluster from NGFS (Munoz+, 2015)J/AJ/152/50 : Cosmicflows-3 catalog (CF3) (Tully+, 2016)J/ApJ/843/16 : Galaxy groups within 3500km/s (Kourkchi+, 2017)J/ApJ/855/142 : Next Generation Fornax Survey. II. (Eigenthaler+, 2018)J/ApJ/857/104 : Low surface brightness galaxies from HSC-SSP (Greco+, 2018)J/A+A/615/A96 : VI photometry in 3 dwarf galaxies (Mueller+, 2018)J/ApJ/859/52 : NGFS. III. Dwarf gal. in outer reg. (Ordenes-Briceno+, 2018)J/A+A/620/A165 : Fornax Deep Survey with VST. IV. (Venhola+, 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)J/ApJ/890/128 : NGVS. XIV. Virgo cluster members (Ferrarese+, 2020)J/AJ/159/103 : SDSS and GAMA dwarf gal. mergers (Kado-Fong+, 2020)J/A+A/635/A135 : Galaxies around M87 (Kashibadze+, 2020)J/ApJ/906/96 : Dwarfs galaxies in Simulations (Applebaum+, 2021)J/ApJ/907/85 : The SAGA Survey. II. Satellite systems (Mao+, 2021)J/A+A/647/A100 : Fornax Deep Survey with VST. XI. (Su+, 2021)J/ApJS/252/18 : Low-surface-brightness gal. from DES Y3 (Tanoglidis+, 2021)http://www.legacysurvey.org/ : DESI Legacy Imaging Surveys home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/922/267https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/922/267http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/922/267https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/922/267https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/922/267http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/922/267GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/922/267/table1 (ELVES host information)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/922/267/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/922/267/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/922/267/table1?GETtext/xml+votable180.050000trueCone search capability for table J/ApJ/922/267/table4 (The Local Volume (LV) field dwarf photometry)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/922/267/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/922/267/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/922/267/table4?GETtext/xml+votable180.050000true6.5458-11.04440.005555555555555556Cone search capability for table J/ApJ/922/267/table5 (Main LV satellite dwarf photometry)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/922/267/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/922/267/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/922/267/table5?GETtext/xml+votable180.050000true283.8292-30.54530.0055555555555555565/2690 6878 6/2079 2119-2120 2122 2130 2144 2169 2272 2371 2374-2375 2377 2380 2409 2411 2414 2604 2611 2628 2709 2717 2774 2777 2852 2953 3042 4313 4507-4508 4511 4518 4522 4533 4554 4650 4928 5008 5176 5180 5267 5283 5285 5287 5489 5584 5607 5635 5983 6108 6399 6502 6560 6752 6772 6981 7265 7577 7579 7582 7599-7600 7603-7604 7606-7607 7611-7612 7618 7627-7628 7649-7650 7769 7878 7952 7956 7970 8028 8120 8908 10265-10266 10538 10607 10627 10659 10751 10754 10756 10785 10793 10800 10810 10815 10839 10841-10843 10851 10856 10910 10970 10977 10979 10981-10982 10999 11006 11027 11041 11045 11084 11092-11093 11095 11120 11140 11270 11432 11434 11444 11450 11691 11696 11933 12199 13637 13720 14149 16016 16076 16414 16459 16655 16670 16687 16695 16697 17165 17229 18335 18393-18394 18397-18398 18417 18420 19565 19678 19779 19833 20262 20416 20510 21089 22495 25081-25083 25344 26047 26257 26260 26262-26263 26265 26268 26270 26554 26797 26800 26803 26808-26809 26811 26858 27055 27351 27383 27516 27518 27580 27600 27604-27605 27904 27926 28003-28004 28015 28025 28035 28062 28087 28099-28102 28113 28130 28140-28141 28152 28166-28167 28173 28178 28184 28361 28476 28493 28510 28526 28540 28631 28636 28666 29699 33571 33655-33656 33742 33986 34189 34351 35214 35482 35720 35969 38841 38846 39043 39100 43257-43258 43260 43262-43263 43424 43434 43602 43604 43606-43607 43610 43828 43875 43878 43881 43883-43884 43924-43925 43972 45748 45750 46314 46339 46597 48035 48942https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/922/267?format=asciiOpticaldefaultJ/ApJ/922/267/table1ELVES host informationrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHostHost namemeta.id;meta.maincharprimaryDist[0/11.9] DistanceMpcpos.distancefloatr_DistDistance reference(s) (1)meta.ref;pos.framecharNsat[0/29] Number of satellites (2)meta.numberintNun[0/16] Number of unconfirmed satellites (2)meta.numberintRcov[150/300] Coverage radiuskpcphys.size.radiusintSimbadNameSimbad column added by the CDSmeta.idcharnullableNEDNED column added by the CDSmeta.ref.urlcharLEDAmeta.ref.urlcharDetImaging data used for dwarf detection (3)meta.bibcharConfCandidate confirmation (3)meta.bibcharPhotPhotometry used (3)meta.bibchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.mainnullable_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainnullableJ/ApJ/922/267/table4The Local Volume (LV) field dwarf photometrySimbadNameSimbad column added by the CDSmeta.idcharnullablee_rimag[0.09/0.12]? Uncertainty in rimagmagstat.error;phot.magfloatnullablegMag[-16.3/-10.3]? Absolute g-band magnitudemagphys.magAbs;em.opt.Bfloatnullablee_gMag[0.08/0.12]? Uncertainty in gMagmagstat.error;phot.magfloatnullableVMag[-16.5/-10.4] Absolute V-band magnitude (G2)magphys.magAbs;em.opt.Vfloate_VMag[0.09/0.2] Uncertainty in VMagmagstat.error;phot.magfloatlogMs[5.5/8.5] Log of stellar masslog(solMass)phys.massfloate_logMs[0.06/0.2] Uncertainty in logMslog(solMass)stat.errorfloatmu0V[19.1/26.18] V-band central surface brightnessmag.arcsec**-2phot.mag.sb;em.opt.Vfloate_mu0V[0.1/0.3]? Uncertainty in mu0Vmag.arcsec**-2stat.errorfloatnullableRe[157/4299] Effective radius of galaxy modelpcphys.size.radius;meta.modelledfloate_Re[12/208]? Uncertainty in Repcstat.errorfloatnullableell[0.05/0.87] Measured ellipticitysrc.ellipticityfloate_ell[0.02/0.1] Uncertainty in ellstat.errorfloatETGEarly-type galaxy? (always "False")meta.code.classcharFiltFilters used ("gi", "gr" or "None")meta.code;instr.filtercharTelInstrument+Telescope used ("DECALS", "CFHT" or "MCCONN")instr.setupcharNEDNED column added by the CDSmeta.ref.urlcharLEDAmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameDwarf namemeta.id;meta.maincharHostHost type ("FIELD" or "LG")obs.fieldcharRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-61.4/80.2] Declination (J2000)degpos.eq.dec;meta.maingmag[10.5/19.3]? Apparent g-band magnitudemagphot.mag;em.opt.Bfloatnullablee_gmag[0.08/0.12]? Uncertainty in gmagmagstat.error;phot.magfloatnullablerimag[10.2/19.1]? Apparent r- or i- band magnitude (G1)magphot.mag;em.optfloatnullableJ/ApJ/922/267/table5Main LV satellite dwarf photometrylogMs[5.57/8.5] Log of stellar masslog(solMass)phys.massfloate_logMs[0.1/0.22] Uncertainty in logMslog(solMass)stat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameDwarf namemeta.id;meta.maincharHostHost namemeta.id.parentcharRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-64.3/71.5] Declination (J2000)degpos.eq.dec;meta.maingmag[12.26/21]? Apparent g-band magnitudemagphot.mag;em.opt.Bfloatnullablee_gmag[0.01/0.64]? Uncertainty in gmagmagstat.error;phot.magfloatnullablerimag[11.8/20.54]? Apparent r- or i- band magnitude (G1)magphot.mag;em.optfloatnullablee_rimag[0.01/0.42]? Uncertainty in rimagmagstat.error;phot.magfloatnullablegMag[-16.49/-8.76]? Absolute g-band magnitudemagphys.magAbs;em.opt.Bfloatnullablee_gMag[0.01/0.7]? Uncertainty in gMagmagstat.error;phot.magfloatnullableVMag[-16.7/-9] Absolute V-band magnitude (2)magphys.magAbs;em.opt.Vfloate_VMag[0.01/0.7] Uncertainty in VMagmagstat.error;phot.magfloatSimbadNameSimbad column added by the CDSmeta.idcharnullablemu0V[19.8/26.5] V-band central surface brightnessmag.arcsec**-2phot.mag.sb;em.opt.Vfloate_mu0V[0.02/0.8]? Uncertainty in mu0Vmag.arcsec**-2stat.errorfloatnullableRe[119/4075] Effective radius of galaxy modelpcphys.size.radius;meta.modelledfloate_Re[0/685]? Uncertainty in Repcstat.errorfloatnullableell[-0.1/0.78]? Measured ellipticitysrc.ellipticityfloatnullablee_ell[0/0.15]? Uncertainty in ellstat.errorfloatnullableETGEarly-type galaxy? (1)meta.code.classcharFiltFilters used ("gi", "gr" or "None")meta.code;instr.filtercharTelInstrument+Telescope usedinstr.setupcharBady=Bad photometry? (2)meta.codechar