J/ApJ/907/85ivo://CDS.VizieR/J/ApJ/907/85doi:10.26093/cds/vizier.19070085CDSMao Y.-Y.Geha M.Wechsler R.H.Weiner B.Tollerud E.J.Nadler E.O.,Kallivayalil N.2026-02-10T20:05:16Z2022-06-16T08:47:49ZCDS support team

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

cds-question@unistra.frsurveysgalaxiesvisible-astronomyspectroscopystellar-massesradial-velocityWe present the Stage II results from the ongoing Satellites Around Galactic Analogs (SAGA) Survey. Upon completion, the SAGA Survey will spectroscopically identify satellite galaxies brighter than Mr,o=-12.3 around 100 Milky Way (MW) analogs at z~0.01. In Stage II, we have more than quadrupled the sample size of Stage I, delivering results from 127 satellites around 36 MW analogs with an improved target selection strategy and deep photometric imaging catalogs from the Dark Energy Survey and the Legacy Surveys. We have obtained 25372 galaxy redshifts, peaking around z=0.2. These data significantly increase spectroscopic coverage for very low redshift objects in 17<ro< 20.75 around SAGA hosts, creating a unique data set that places the Local Group in a wider context. The number of confirmed satellites per system ranges from zero to nine and correlates with host galaxy and brightest satellite luminosities. We find that the number and luminosities of MW satellites are consistent with being drawn from the same underlying distribution as SAGA systems. The majority of confirmed SAGA satellites are star-forming, and the quenched fraction increases as satellite stellar mass and projected radius from the host galaxy decrease. Overall, the satellite quenched fraction among SAGA systems is lower than that in the Local Group. We compare the luminosity functions and radial distributions of SAGA satellites with theoretical predictions based on cold dark matter simulations and an empirical galaxy-halo connection model and find that the results are broadly in agreement.2021ApJ...907...85Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/907/85CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)II/357 : The Dark Energy Survey (DES) Data Release 1 (Abbott+, 2018)VII/203 : Las Campanas Redshift Survey (Shectman+ 1996)VII/250 : The 2dF Galaxy Redshift Survey (2dFGRS) (2dFGRS Team, 1998-2003)VII/259 : 6dF galaxy survey final redshift release (Jones+, 2009)J/AJ/130/873 : Properties of BQS objects in the SDSS DR3 area (Jester+, 2005)J/ApJS/199/26 : The 2MASS Redshift Survey (2MRS) (Huchra+, 2012)J/AJ/144/4 : Properties of dwarf galaxies in Local Group (McConnachie+,2012)J/ApJ/744/44 : H{alpha} and UV fluxes in nearby galaxies (Weisz+, 2012)J/ApJ/779/102 : Metallicities of RGB stars in dwarf galaxies (Kirby+, 2013)J/MNRAS/435/1928 : Dwarf galaxy planes in Local Group (Pawlowski+, 2013)J/MNRAS/474/3875 : Galaxy And Mass Assembly (GAMA) DR3 (Baldry+, 2018)J/MNRAS/474/4151 : WiggleZ Dark Energy Survey final DR (Drinkwater+, 2018)J/ApJ/857/104 : Low surface brightness galaxies from HSC-SSP (Greco+, 2018)J/ApJ/861/49 : ALFALFA extragalactic HI source catalog (Haynes+, 2018)J/MNRAS/478/5336 : z-low satellite galaxies in COSMOS survey (Xi+, 2018)J/ApJS/244/24 : z=0 Multiwavelength Galaxy Synthesis (z0MGS). I. (Leroy+, 2019)J/A+A/629/A18 : Deep VI photometry 15 dwarf galaxy candidates (Mueller+, 2019)J/MNRAS/491/3496 : Andromeda XIX member stars (Collins+, 2020)J/ApJ/893/47 : Milky Way satellite census. I. DES & PS1 (Drlica-Wagner+, 2020)J/ApJ/895/32 : Zwicky Transient Facility BTS. I. (Fremling+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/907/85https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/907/85http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/907/85https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/907/85https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/907/85http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/907/85GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/907/85/table2 (*List of host galaxies in 36 complete SAGA systems)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/907/85/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/907/85/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/907/85/table2?GETtext/xml+votable180.050000true20.44917.5920.005555555555555556Cone search capability for table J/ApJ/907/85/table3 (List of 127 satellites in 34 complete SAGA systems)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/907/85/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/907/85/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/907/85/table3?GETtext/xml+votable180.050000true20.777217.89160.0055555555555555566/6437 6448 7265 7267 8506 9216 10364 10674 10680 10705 10719 10727 10738 11402 17740-17741 18427 18669 18680 18800 18895 18917 19307 19310 19792-19793 25886-25887 25945 25971 25974 25977 26241 26243 26247 26258 27285 27287 27365 27367 27704-27705 28076 28381 31404 32426-32427 32439 32480 32482 36286-36287 36338 38956 45054-45055 46034-46035 46688-46689 46736 46738 47383 47389https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/907/85?format=asciiOpticaldefaultJ/ApJ/907/85/table2*List of host galaxies in 36 complete SAGA systemsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalHost galaxy, common namemeta.id;meta.maincharprimarySAGASAGA namemeta.idcharRAJ2000[20/355] Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-60/53] Declination (J2000)degpos.eq.dec;meta.mainRVel[1659/2865] Heliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricintDist[25.3/39.8] DistanceMpcpos.distancefloatKMAG[-24.6/-23] Absolute, dereddened K-band magnitudemagphot.magfloatPcovPhotometric coverage (1)photcharScov[80/100] Spectroscopic coverage, within the SAGA primary targeting region%meta.codefloatNsat[0/9] Number of confirmed satellites (2)meta.numberintFsat[0/1] Number of satellites below mag. limit (2)meta.numberintSimbadSimbad column added by the CDSmeta.ref.urlcharPsat[0.06/2.54] Unconfirmed potential satellites (2)meta.numberfloatJ/ApJ/907/85/table3List of 127 satellites in 34 complete SAGA systemsGalHost galaxy, common namemeta.id.assoccharSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintobjIDObject ID (1)meta.id;meta.maincharRAJ2000[20/355] Right Ascension (J2000) (1)degpos.eq.ra;meta.mainDEJ2000[-60/54] Declination (J2000) (1)degpos.eq.dec;meta.mainDist[15/298] Projected distance to the host galaxykpcpos.distanceintdRVel[-259/259] Difference in heliocentric velocity, satellite-hostkm/sphys.veloc;arith.diffintrmag[12.7/21.7] dereddened r-band magnitude (1)magphot.mag;em.opt.RfloatRMAG[-20.2/-10.7] k-corrected, absolute r-band magnitude (2)magphys.magAbsfloatg-r[0.06/0.69] dereddened, g-r color (1)magphot.color;em.opt.V;em.opt.Rfloatmu[19.4/25.8] effective surface brightness (1)mag.arcs**-2phot.mag.sbfloatMass[5.65/10.1] log, stellar mass (3)log(solMass)phys.massfloatHa[YN] Presence of the H{alpha}>2Angstromsmeta.codecharRefRedshift source (4)meta.bibchar