J/MNRAS/519/318ivo://CDS.VizieR/J/MNRAS/519/318CDSKim S.-J.Oh S.-H.Wang J.Staveley-Smith L.Koribalski B.S.Kim M.,Park H.-J.Kim S.Spekkens K.Westmeier T.Wong O.I.Meurer G.R.,K.P.Catinella B.Mcquinn K.B.W.Bigiel F.Holwerda B.W.Rhee J.,Lee-Waddell K.Deg N.Verdes-Montenegro L.For B.-Q.Madrid J.P.,Denes H.Elagali A.2026-04-07T10:36:13Z2026-03-05T10:00:12ZCDS support team

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

cds-question@unistra.frradio-galaxiesradio-astronomygalaxy-clustersh-i-line-emissioninterferometryspectroscopyastrometryradial-velocitygalaxy-kinematicsWe examine the H I gas kinematics of galaxy pairs in two clusters and a group using Australian Square Kilometre Array Pathfinder (ASKAP) WALLABY pilot survey observations. We compare the H I properties of galaxy pair candidates in the Hydra I and Norma clusters, and the NGC 4636 group, with those of non-paired control galaxies selected in the same fields. We perform H I profile decomposition of the sample galaxies using a tool, baygaud, which allows us to deblend a line-of-sight velocity profile with an optimal number of Gaussian components. We construct H I superprofiles of the sample galaxies via stacking of their line profiles after aligning the central velocities. We fit a double Gaussian model to the superprofiles and classify them as kinematically narrow and broad components with respect to their velocity dispersions. Additionally, we investigate the gravitational instability of H I gas discs of the sample galaxies using Toomre Q parameters and H I morphological disturbances. We investigate the effect of the cluster environment on the H I properties of galaxy pairs by dividing the cluster environment into three subcluster regions (i.e. outskirts, infalling, and central regions). We find that the denser cluster environment (i.e. infalling and central regions) is likely to impact the H I gas properties of galaxies in a way of decreasing the amplitude of the kinematically narrow H I gas (M^HI^_narrow_/M^HI^_total_), and increasing the Toomre Q values of the infalling and central galaxies. This tendency is likely to be more enhanced for galaxy pairs in the cluster environment.2023MNRAS.519..318Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/519/318CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/510/1716 : Hydra I cluster study with H I emission (Reynolds+, 2022)J/MNRAS/493/5089 : HI asymmetries with LVHIS, VIVA, and HALOGASJ/MNRAS/489/5723 : ASKAP HI imaging of the Lyon Group of Galaxies 351J/MNRAS/478/3447 : SDSS post-merger galaxies HI data (Ellison+, 2018)J/MNRAS/460/2143 : HI size-mass relation of galaxies (Wang+, 2016)J/MNRAS/436/34 : GALEX Arecibo SDSS survey. Final data releaseJ/MNRAS/416/2415 : Morphological parameters of WHISP galaxies (Holwerda+, 2011)J/MNRAS/414/2005 : Cosmic flows observations (Courtois+, 2011)J/MNRAS/400/1962 : Southern GEMS groups. II. (Kilborn+, 2009)J/MNRAS/383/445 : Radial velocities in the Norma cluster (A3627) (Woudt+,2008)J/A+A/631/A87 : Close pairs of galaxies in MUSE Deep Fields (Ventou+, 2019)J/A+A/324/877 : HI properties of spiral and irregular galaxiesJ/ApJ/915/70 : WALLABY pilot survey: HI gas in Hydra cluster (Wang+, 2021)J/ApJ/861/49 : ALFALFA extragalactic HI source catalog (Haynes+, 2018)J/AJ/144/134 : LITTLE THINGS survey of nearby dwarf galaxiesJ/AJ/140/1194 : FUV/HI relations in nearby galaxies (Bigiel+, 2010)J/AJ/136/2563 : HI Nearby Galaxy Survey, THINGS (Walter+, 2008)J/AJ/136/2782 : Star formation efficiency in nearby galaxies (Leroy+, 2008)J/AJ/129/682 : Structural properties of S+S galaxieshttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/519/318https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/519/318http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/519/318https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/519/318https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/519/318http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/519/318GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/519/318/tablea1 (The H I properties and distances of the control galaxies in the ASKAP Hydra I cluster field)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/519/318/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/519/318/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/519/318/tablea1?GETtext/xml+votable180.050000true150.966667-27.5709170.005555555555555556Cone search capability for table J/MNRAS/519/318/tablea3 (The H I properties and distances of the control galaxies in the ASKAP NGC 4636 field)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/519/318/tablea3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/519/318/tablea3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/519/318/tablea3?GETtext/xml+votable180.050000true186.788755.8807220.005555555555555556Cone search capability for table J/MNRAS/519/318/tablea5 (The HI properties and distances of the control galaxies in the ASKAP Norma cluster field)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/519/318/tablea5?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/519/318/tablea5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/519/318/tablea5?GETtext/xml+votable180.050000true248.644583-62.0459170.005555555555555556Cone search capability for table J/MNRAS/519/318/tablea2 (The H I properties and distances of the paired galaxies in the ASKAP Hydra I cluster field)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/519/318/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/519/318/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/519/318/tablea2?GETtext/xml+votable180.050000true150.905833-26.4941940.005555555555555556Cone search capability for table J/MNRAS/519/318/tablea4 (The H I properties and distances of the paired galaxies in the ASKAP NGC 4636 field)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/519/318/tablea4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/519/318/tablea4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/519/318/tablea4?GETtext/xml+votable180.050000true186.7970837.2636670.005555555555555556Cone search capability for table J/MNRAS/519/318/tablea6 (The H I properties and distances of the paired galaxies in the ASKAP Norma cluster field)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/519/318/tablea6?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/519/318/tablea6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/519/318/tablea6?GETtext/xml+votable180.050000true249.482083-56.8164440.0055555555555555565/6542-6543 6567 9691 9708-9709 9713 9716 10335 10357 10505-10507 6/26157 26159 26161-26162 26257-26260 26265 26267 26304 26306 26308 26312 26314 26318-26319 26330 26336-26337 26339-26340 26342-26344 26347 26349 26353-26354 26360-26362 26364 27713 27716 27718-27719 38719 38758-38759 38761-38763 38768 38779 38805 38807 38812-38814 38821 38841 38843-38845 38847-38850 38856 38860 38862-38863 38868 38872-38873 38880-38881 38883-38884 38888 41339 41424-41425 41427 42017-42019 42034 42038 42042 42112-42113 42117-42118 42120-42121 42124https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/519/318?format=asciiRadiodefaultJ/MNRAS/519/318/tablea1The H I properties and distances of the control galaxies in the ASKAP Hydra I cluster fieldrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name designation as JHHMMSS-DDMMSS (Name)meta.id;meta.maincharf_NameIndicates the galaxy that have similar velocity widths of the narrow and broad components in the H I superprofile analysis (flag)meta.codecharRAJ2000Right ascension kinematic centre from 2dbat (J2000)pos.eq.ra;meta.mainDEJ2000Declination kinematic centre from 2dbat (J2000)pos.eq.dec;meta.mainDDistance to the galaxy from redshift (D)Mpcpos.distancefloatVsysSystemic velocity from redshift (V_sys_)1000km.s**-1phys.velocfloatRHIRadius of H I disc from the baygaud analysis (R_rmHI_)kpcphys.size.radius;em.line.HIfloatSHIIntegrated H I intensities derived from superprofiles in Section 3 (S_HI_)Jy.km/sspect.line.intensity;em.line.HIfloatMHIH I mass derived from superprofiles in Section 3 as MHIn + MHIb (M^HI^_total_)1e+08solMassphys.mass;meta.modelledfloatMHInNarrow H I mass derived from superprofiles in Section 3 (M^HI^_narrow_)1e+08solMassphys.mass;meta.modelledfloatMHIbBroad H I mass derived from superprofiles in Section 3 (M^HI^_broad_)1e+08solMassphys.mass;meta.modelledfloatMorphHI? HI morphological asymmetry of the galaxy (A^HI^_map_)src.morph.paramfloatnullableQ? Median values of the Toomre Q parameter values of the galaxy (Q)stat.param;arith;meta.modelledfloatnullablef_QFlag in Q (flag) (1)meta.codecharJ/MNRAS/519/318/tablea3The H I properties and distances of the control galaxies in the ASKAP NGC 4636 fieldDEJ2000Declination kinematic centre from 2dbat (J2000)pos.eq.dec;meta.mainDDistance to the galaxy from redshift (D)Mpcpos.distancefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name designation as JHHMMSS-DDMMSS (Name)meta.id;meta.maincharf_NameIndicates the galaxy that have similar velocity widths of the narrow and broad components in the H I superprofile analysis (flag)meta.codecharRAJ2000Right ascension kinematic centre from 2dbat (J2000)pos.eq.ra;meta.mainVsysSystemic velocity from redshift (V_sys_)1000km.s**-1phys.velocfloatRHIRadius of H I disc from the baygaud analysis (R_rmHI_)kpcphys.size.radius;em.line.HIfloatSHIIntegrated H I intensities derived from superprofiles in Section 3 (S_HI_)Jy.km/sspect.line.intensity;em.line.HIfloatMHIH I mass derived from superprofiles in Section 3 as MHIn + MHIb (M^HI^_total_)1e+08solMassphys.mass;meta.modelledfloatMHInNarrow H I mass derived from superprofiles in Section 3 (M^HI^_narrow_)1e+08solMassphys.mass;meta.modelledfloatMHIbBroad H I mass derived from superprofiles in Section 3 (M^HI^_broad_)1e+08solMassphys.mass;meta.modelledfloatMorphHI? HI morphological asymmetry of the galaxy (A^HI^_map_)src.morph.paramfloatnullableQ? Median values of the Toomre Q parameter values of the galaxy (Q)stat.param;arith;meta.modelledfloatnullablef_QFlag in Q (flag) (1)meta.codecharJ/MNRAS/519/318/tablea5The HI properties and distances of the control galaxies in the ASKAP Norma cluster fieldf_NameIndicates the galaxy that have similar velocity widths of the narrow and broad components in the H I superprofile analysis (flag)meta.codecharRAJ2000Right ascension kinematic centre from 2dbat (J2000)pos.eq.ra;meta.mainDEJ2000Declination kinematic centre from 2dbat (J2000)pos.eq.dec;meta.mainDDistance to the galaxy from redshift (D)Mpcpos.distancefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name designation as JHHMMSS-DDMMSS (Name)meta.id;meta.maincharVsysSystemic velocity from redshift (V_sys_)1000km.s**-1phys.velocfloatRHIRadius of H I disc from the baygaud analysis (R_rmHI_)kpcphys.size.radius;em.line.HIfloatSHIIntegrated H I intensities derived from superprofiles in Section 3 (S_HI_)Jy.km/sspect.line.intensity;em.line.HIfloatMHIH I mass derived from superprofiles in Section 3 as MHIn + MHIb (M^HI^_total_)1e+08solMassphys.mass;meta.modelledfloatMHInNarrow H I mass derived from superprofiles in Section 3 (M^HI^_narrow_)1e+08solMassphys.mass;meta.modelledfloatMHIbBroad H I mass derived from superprofiles in Section 3 (M^HI^_broad_)1e+08solMassphys.mass;meta.modelledfloatMorphHI? HI morphological asymmetry of the galaxy (A^HI^_map_)src.morph.paramfloatnullableQ? Median values of the Toomre Q parameter values of the galaxy (Q)stat.param;arith;meta.modelledfloatnullablef_QFlag in Q (flag) (1)meta.codecharJ/MNRAS/519/318/tablea2The H I properties and distances of the paired galaxies in the ASKAP Hydra I cluster fieldDVRelative line-of-sight velocity to the companion galaxy ({Delta}V) (2)km/sphys.veloc;arith.diffcharMorphHI? HI morphological asymmetry of the galaxy (A^HI^_map_)src.morph.paramfloatnullableQ? Median values of the Toomre Q parameter values of the galaxy (Q)stat.param;arith;meta.modelledfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name designation as JHHMMSS-DDMMSS (Name)meta.id;meta.maincharf_Name? Flag on galaxy (flag) (1)meta.codeintnullableRAJ2000Right ascension kinematic centre from 2dbat (J2000)pos.eq.ra;meta.mainDEJ2000Declination kinematic centre from 2dbat (J2000)pos.eq.dec;meta.mainDDistance to the galaxy from redshift (D)Mpcpos.distancefloatVsysSystemic velocity from redshift (V_sys_)1000km.s**-1phys.velocfloatRHIRadius of H I disc from the baygaud analysis (R_rmHI_)kpcphys.size.radius;em.line.HIfloatSHIIntegrated H I intensities derived from superprofiles in Section 3 (S_HI_)Jy.km/sspect.line.intensity;em.line.HIfloatMHIH I mass derived from superprofiles in Section 3 as MHIn + MHIb (M^HI^_total_)1e+08solMassphys.mass;meta.modelledfloatMHInNarrow H I mass derived from superprofiles in Section 3 (M^HI^_narrow_)1e+08solMassphys.mass;meta.modelledfloatMHIbBroad H I mass derived from superprofiles in Section 3 (M^HI^_broad_)1e+08solMassphys.mass;meta.modelledfloatRpProjected distance to the companion galaxy (R_p_) (2)kpcpos.distancecharJ/MNRAS/519/318/tablea4The H I properties and distances of the paired galaxies in the ASKAP NGC 4636 fieldrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name designation as JHHMMSS-DDMMSS (Name)meta.id;meta.maincharf_Name? Flag on galaxy (flag) (1)meta.codeintnullableRAJ2000Right ascension kinematic centre from 2dbat (J2000)pos.eq.ra;meta.mainDEJ2000Declination kinematic centre from 2dbat (J2000)pos.eq.dec;meta.mainDDistance to the galaxy from redshift (D)Mpcpos.distancefloatVsysSystemic velocity from redshift (V_sys_)1000km.s**-1phys.velocfloatRHIRadius of H I disc from the baygaud analysis (R_rmHI_)kpcphys.size.radius;em.line.HIfloatSHIIntegrated H I intensities derived from superprofiles in Section 3 (S_HI_)Jy.km/sspect.line.intensity;em.line.HIfloatMHIH I mass derived from superprofiles in Section 3 as MHIn + MHIb (M^HI^_total_)1e+08solMassphys.mass;meta.modelledfloatMHInNarrow H I mass derived from superprofiles in Section 3 (M^HI^_narrow_)1e+08solMassphys.mass;meta.modelledfloatMHIbBroad H I mass derived from superprofiles in Section 3 (M^HI^_broad_)1e+08solMassphys.mass;meta.modelledfloatRpProjected distance to the companion galaxy (R_p_) (2)kpcpos.distancecharDVRelative line-of-sight velocity to the companion galaxy ({Delta}V) (2)km/sphys.veloc;arith.diffcharMorphHI? HI morphological asymmetry of the galaxy (A^HI^_map_)src.morph.paramfloatnullableQ? Median values of the Toomre Q parameter values of the galaxy (Q)stat.param;arith;meta.modelledfloatnullableJ/MNRAS/519/318/tablea6The H I properties and distances of the paired galaxies in the ASKAP Norma cluster fieldRAJ2000Right ascension kinematic centre from 2dbat (J2000)pos.eq.ra;meta.mainDEJ2000Declination kinematic centre from 2dbat (J2000)pos.eq.dec;meta.mainDDistance to the galaxy from redshift (D)Mpcpos.distancefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name designation as JHHMMSS-DDMMSS (Name)meta.id;meta.maincharf_Name? Flag on galaxy (flag) (1)meta.codeintnullableVsysSystemic velocity from redshift (V_sys_)1000km.s**-1phys.velocfloatRHIRadius of H I disc from the baygaud analysis (R_rmHI_)kpcphys.size.radius;em.line.HIfloatSHIIntegrated H I intensities derived from superprofiles in Section 3 (S_HI_)Jy.km/sspect.line.intensity;em.line.HIfloatMHIH I mass derived from superprofiles in Section 3 as MHIn + MHIb (M^HI^_total_)1e+08solMassphys.mass;meta.modelledfloatMHInNarrow H I mass derived from superprofiles in Section 3 (M^HI^_narrow_)1e+08solMassphys.mass;meta.modelledfloatMHIbBroad H I mass derived from superprofiles in Section 3 (M^HI^_broad_)1e+08solMassphys.mass;meta.modelledfloatRpProjected distance to the companion galaxy (R_p_) (2)kpcpos.distancecharDVRelative line-of-sight velocity to the companion galaxy ({Delta}V) (2)km/sphys.veloc;arith.diffcharMorphHI? HI morphological asymmetry of the galaxy (A^HI^_map_)src.morph.paramfloatnullableQ? Median values of the Toomre Q parameter values of the galaxy (Q)stat.param;arith;meta.modelledfloatnullable