J/AJ/142/88ivo://CDS.VizieR/J/AJ/142/88doi:10.26093/cds/vizier.51420088CDSFadely R.Willman B.Geha M.Walsh S.Munoz R.R.Jerjen H.,Vargas L.C.Da Costa G.S.2017-07-05T06:59:52Z2013-01-18T14:10:42ZCDS support team

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

cds-question@unistra.frgalaxiesradial-velocityvisible-astronomysloan-photometryWe investigate the kinematic and photometric properties of the Segue 3 Milky Way companion using Keck/DEIMOS spectroscopy and Magellan/IMACS g- and r-band imaging. Using maximum likelihood methods to analyze the photometry, we study the structure and stellar population of Segue 3. We find that the half-light radius of Segue 3 is 26"+/-5" (2.1+/-0.4pc, for a distance of 17kpc) and the absolute magnitude is a mere M_V_=0.0+/-0.8mag, making Segue 3 the least luminous old stellar system known.2011AJ....142...88Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/142/88CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/397/1748 : Spectroscopic study of Segue 2 (Belokurov+, 2009)J/ApJ/692/1464 : Spectroscopy of Segue 1 (Geha+, 2009)J/ApJ/733/46 : Velocity measurements in Segue 1 (Simon+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/142/88https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/142/88http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/142/88https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/142/88https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/142/88http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/142/88GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/142/88/stars (Photometric and Kinematic Data for Keck/DEIMOS Sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/142/88/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/142/88/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/142/88/stars?GETtext/xml+votable180.050000true320.38083319.116750.0055555555555555566/12687 12709https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/142/88?format=asciiOpticaldefaultJ/AJ/142/88/starsPhotometric and Kinematic Data for Keck/DEIMOS SamplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMSimbad column added by the CDSmeta.code.membercharSeqSequential number, <[FWG2011] NNN> in Simbadmeta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainDistRadial distance from center of Segue 3arcminphys.angSizefloatrmagSloan r-band magnitudemagphot.mag;em.opt.Rfloatg-rg-r colour indexmagphot.color;em.opt.B;em.opt.RfloatDateDate of observation or "Combined" when two observationstime.epochcharHVHeliocentric velocity for Datekm/sphys.veloc;pos.heliocentricfloate_HVrms uncertainty on HV (1)km/sstat.errorfloatDate1Date of first observationtime.epochcharHV1? Heliocentric velocity for Date1km/sphys.veloc;pos.heliocentricfloatnullablee_HV1? rms uncertainty on HV1 (1)km/sstat.errorfloatnullableDate2Date of second observationtime.epochcharHV2? Heliocentric velocity for Date2km/sphys.veloc;pos.heliocentricfloatnullablee_HV2? rms uncertainty on HV2 (1)km/sstat.errorfloatnullableSimbadSimbad column added by the CDSmeta.refchar