J/MNRAS/416/2401ivo://CDS.VizieR/J/MNRAS/416/2401doi:10.26093/cds/vizier.74162401CDSHolwerda B.W.Pirzkal N.de Blok W.J.G.Bouchard A.Blyth S.-L.,Van Der Heyden K.J.Elson E.C.2024-07-15T20:16:38Z2012-05-18T15:50:00ZCDS support team

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

cds-question@unistra.frgalaxiesh-i-line-emissiongalaxy-classification-systemsGalaxy evolution is driven to a large extent by interactions and mergers with other galaxies and the gas in galaxies is extremely sensitive to the interactions. One method to measure such interactions uses the quantified morphology of galaxy images. Well-established parameters are Concentration, Asymmetry, Smoothness, Gini and M20 of a galaxy image. Thus far, the application of this technique has mostly been restricted to rest-frame ultraviolet and optical images. However, with the new radio observatories being commissioned [South African Karoo Array Telescope (MeerKAT), Australian SKA Pathfinder (ASKAP), Extended Very Large Array (EVLA), Westerbork Synthesis Radio Telescope/APERture Tile In Focus instrument (WSRT/APERTIF) and ultimately the Square Kilometer Array (SKA)], a new window on the neutral atomic hydrogen gas (HI) morphology of large numbers of galaxies will open up. The quantified morphology of gas discs of spirals can be an alternative indicator of the level and frequency of interaction. The HI in galaxies is typically spatially more extended and more sensitive to low-mass or weak interactions.2011MNRAS.416.2401Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/416/2401CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/136/2563 : HI Nearby Galaxy Survey, THINGS (Walter+, 2008)J/MNRAS/416/2415 : Quantified H I morphology. II (Holwerda+, 2011)J/MNRAS/416/2437 : Quantified H I morphology. IV (Holwerda+, 2011)J/MNRAS/427/3159 : Quantified H I morphology. VI (Holwerda+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/416/2401https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/416/2401http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/416/2401https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/416/2401https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/416/2401http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/416/2401GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/416/2401/tablea2 (THINGS galaxies basic data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/416/2401/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/416/2401/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/416/2401/tablea2?GETtext/xml+votable180.050000true24.17416715.7833330.0055555555555555566/2320 4511 5715 5751 7241 7602 7606-7607 7624 7743 7769 7799 7956 7970 10841 10856 11027 11434 13522 15592 16441 18398 27030 27514 28015 28149 28167 38390https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/416/2401?format=asciiOpticalRadiodefaultJ/MNRAS/416/2401/tablea2THINGS galaxies basic datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGalaxy namemeta.id;meta.maincharprimaryONameOther namemeta.idcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainr_PosReference for position (1)meta.ref;pos.framecharDistDistanceMpcpos.distance;pos.heliocentricfloatr_DistReference for Dist (1)meta.ref;pos.framecharInclInclinationdegsrc.orbital.inclinationintPAPosition angledegpos.posAngintr_PAReference for PA (1)meta.ref;pos.framecharTypeMorphological typesrc.morph.typeintSINGS[y/n] SINGS data ?meta.codecharSDSS[y/n] SDSS data ?meta.codecharGALEX[y/n] GALEX data ?meta.codecharFiltSINGS ancillary, in tablea1.datinstr.bandpasscharSimbadSimbad column added by the CDSmeta.refcharJ/MNRAS/416/2401/tablea1Filter names, their wavelength and typical resolution of the THINGS, SINGS and ancillary datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTypeFilter namemeta.code;instr.filtercharlambdaWavelengthem.wlResResolutionpos.angResolutioncharJ/MNRAS/416/2401/tableaMorphological parameters for the stellar (s) and neutral hydrogen gas (g) disksrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGalaxy namemeta.id;meta.maincharData[sg] s: stellar or g: neutral hydrogen gas datameta.notecharFilterFilter namemeta.id;instr.filtercharGini? Gini parameter (1)stat.fit.paramfloatnullablee_Gini? rms uncertainty on Ginistat.errorfloatnullableM20? Moment of light parameterstat.variancefloatnullablee_M20? rms uncertainty on M20stat.errorfloatnullableC? Concentration parameter, C=5log(r80/r20)stat.paramfloatnullablee_C? rms uncertainty on Cstat.errorfloatnullableA? Asymmetry parametersrc.morph.paramfloatnullablee_A? rms uncertainty on Astat.errorfloatnullableS? Smoothness parameterstat.fit.paramfloatnullablee_S? rms uncertainty on Sstat.errorfloatnullableEll? Ellipticitysrc.ellipticityfloatnullablee_Ell? rms uncertainty on Ellstat.errorfloatnullableGM? Gini of the second-order moment parameterstat.fit.paramdoublenullablee_GM? rms uncertainty on GMstat.errorfloatnullable