J/MNRAS/433/543ivo://CDS.VizieR/J/MNRAS/433/543doi:10.26093/cds/vizier.74330543CDSSweet S.M.Meurer G.Drinkwater M.J.Kilborn V.Denes H.Bekki K.,Hanish D.Ferguson H.Knezek P.Bland-Hawthorn J.Dopita M.,Doyle-Pegg M.T.Elson E.Freeman K.Heckman T.Kennicutt R.Kim J.H.,Koribalski B.Meyer M.Putman M.Ryan-Weber E.Smith C.,Staveley-Smith L.Wong O.I.Webster R.Werk J.Zwaan M.2024-07-22T20:13:28Z2014-09-03T13:41:25ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxiesvisible-astronomyh-i-line-emissionH{alpha} observations centred on galaxies selected from the Hi Parkes All-Sky Survey (HiPASS) typically show one and sometimes two star-forming galaxies within the ~15arcmin beam of the Parkes 64m HI detections. In our Survey for Ionization in Neutral Gas Galaxies (SINGG) we found 15 cases of HiPASS sources containing four or more emission line galaxies (ELGs). We name these fields Choir groups. In the most extreme case, we found a field with at least nine ELGs. In this paper, we present a catalogue of Choir group members in the context of the wider SINGG sample. The dwarf galaxies in the Choir groups would not be individually detectable in HiPASS at the observed distances if they were isolated, but are detected in SINGG narrow-band imaging due to their membership of groups with sufficiently large total HI mass. The ELGs in these groups are similar to the wider SINGG sample in terms of size, H{alpha} equivalent width and surface brightness. Eight of these groups have two large spiral galaxies with several dwarf galaxies and may be thought of as morphological analogues of the Local Group. However, on average our groups are not significantly Hi deficient, suggesting that they are at an early stage of assembly, and more like the M81 group. The Choir groups are very compact at typically only 190kpc in projected distance between the two brightest members. They are very similar to SINGG fields in terms of star formation efficiency (SFE; the ratio of star formation rate to HI mass), showing an increasing trend in SFE with stellar mass.2013MNRAS.433..543Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/433/543CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/73 : HI Parkes All Sky Survey Catalogue (HIPASS) (Meyer+, 2004)J/ApJS/165/307 : SINGG. I. (Meurer+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/433/543https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/433/543http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/433/543https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/433/543https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/433/543http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/433/543GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/433/543/table1 (Summary of Choir groups)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/433/543/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/433/543/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/433/543/table1?GETtext/xml+votable180.050000true31.2728333-55.11181940.005555555555555556Cone search capability for table J/MNRAS/433/543/table2 (Choir member descriptions)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/433/543/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/433/543/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/433/543/table2?GETtext/xml+votable180.050000true31.2728333-55.11181670.0055555555555555566/17492 22737 22739 22742 24936 25267 25273 25344 25888 25890 26712-26713 32972 33704 34305 40277 40279 44603 46009 46399 46442 47393https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/433/543?format=asciiOpticalRadiodefaultJ/MNRAS/433/543/table1Summary of Choir groupsW50uNarrow-band filter upper velocity rangekm/sinstr.bandwidthintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHIPASSName assigned to field in HiPASS (JHHMM-DDa)meta.id;meta.maincharNgNumber of galaxies in the groupmeta.numberintONameOptical name assigned to group as found in NASA/IPAC Extragalactic Database (NED; http://ned.ipac.caltech.edu/)meta.id;meta.datasetcharRAJ2000Field brightest source right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Field brightest source declination (J2000)pos.eq.dec;meta.mainDistDistance based on the multipole attractor model as in Mould et al. (2000ApJ...529..786M) and adopting H_0_=70km/s/MpcMpcpos.distance;pos.heliocentricintFOV[100/660] Field of view of ~15arcmin at the distance of the groupkpcsrc.morph.scLengthintELGs[4/10] Number of Emission-Line Galaxiesmeta.numberintComp[27/420] Projected group compactness, estimated by projected separation of two largest group members (see Section 3.5)kpcposfloatlogMHILogarithm of group HI mass from HiPASSlog(solMass)phys.mass;pos.lgfloatn_logMHI[a] Remeasured logMHI (1)meta.notecharHIdefHI deficiency parameter (2)stat.fit.paramfloatn_HIdef[b] Group excluded (1)meta.notecharVHIHeliocentric HI velocitykm/sspect.dopplerVeloc;em.line.HIintWHIObserved HI emission width.km/sspect.line.widthintW50lNarrow-band filter lower velocity rangekm/sinstr.bandwidthintn_W50u[c] Possible additional ELGs (1)meta.notecharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/MNRAS/433/543/table2Choir member descriptionsSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSINGGName assigned in SINGG (HiPASS name with :Sn appended for nth source (JHHMM-DDa:Sn)meta.id;meta.maincharn_SINGG[ab*] Note on SINGG galaxy (1)meta.notecharONameOptical previously assigned ID based on position match with NED (http://ned.ipac.caltech.edu/)meta.id;spect.dopplerVeloc.opt;em.optcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainreR-band effective radiusarcsecphys.angSize;em.opt.Rfloate_rerms uncertainty on rearcsecstat.errorfloata/b? Ratio of major and minor axessrc.ellipticityfloatnullableRMAGR-band absolute magnitude (AB mag)magphot.magfloate_RMAGrms uncertainty on RMAGmagstat.errorfloatlogFHaLogarithm of total H{alpha} flux, corrected for Galactic extinction and [NII] contaminationlog(mW.m**-2)phot.flux;em.line.Halphafloate_logFHarms uncertainty on logFHalog(mW.m**-2)stat.errorfloatSuBreR-band effective surface brightness, face-on and extinction-corrected (Galactic and internal) (AB mag)mag.arcsec**-2phot.mag.sb;em.opt.Rfloate_SuBrerms uncertainty on SuBremag.arcsec**-2stat.errorfloatMTypeNED morphological classification where available, or [new classification]src.morphRV? Central radial velocity from our ANU2.3mT/WiFeS data (Sweet et al., in prep.)km/sphys.veloc;pos.heliocentricintnullable