J/other/RAA/14.1ivo://CDS.VizieR/J/other/RAA/14.1393doi:10.26093/cds/vizier/dx/bekbdjdCDSZhou Z.-M.Wu H.Huang L.Li H.-B.Zhou Z.-Z.Jia J.-J.Lam M.-I.,Zhu Y.-N.2026-02-10T20:06:59Z2015-05-06T14:16:29ZCDS support team

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

cds-question@unistra.frgalaxiesh-ii-regionsspectroscopyWe present an analysis of the metallicity and star formation activities of HII regions in the interacting system Arp 86, based on the first scientific observations using multi-object spectroscopy with the 2.16m telescope at the Xinglong Observing Station. We find that the oxygen abundance gradient in Arp 86 is flatter than that in normal disk galaxies, which confirms that gas inflows caused by tidal forces during encounters can flatten the metallicity distributions in galaxies. The companion galaxy NGC 7752 is currently experiencing a galaxy-wide starburst with a higher star formation rate surface density than the main galaxy NGC 7753, which can be explained in that the companion galaxy is more susceptible to the effects of interaction than the primary. We also find that the galaxy 2MASX J23470758+2926531 has similar abundance and star formation properties to NGC 7753, and may be a part of the Arp 86 system.2014RAA....14.1393Zhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/RAA/14.1393CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/RAA/14.1393https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/RAA/14.1393http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/RAA/14.1393https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/RAA/14.1393https://vizier.iucaa.in/viz-bin/votable?-source=J/other/RAA/14.1393http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/RAA/14.1393GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/RAA/14.1393/table1 (Sample of observed HII regions)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/RAA/14.1393/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/other/RAA/14.1393/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/RAA/14.1393/table1?GETtext/xml+votable180.050000true356.773666729.49380.0055555555555555566/20371https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/RAA/14.1393?format=asciiOpticaldefaultJ/other/RAA/14.1393/table1Sample of observed HII regionsID[1/70] HII region sequential numbermeta.recordintprimaryRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainF[OII]? Line flux of [OII]3727 (1)0.1aW.m**-2phot.flux;em.X-raydoublenullablee_F[OII]? rms uncertainty on F[OII]0.1aW.m**-2stat.errorfloatnullableF[OIII]? Line flux of [OIII]5007 (1)0.1aW.m**-2phot.flux;em.line.OIII;spect.linefloatnullablee_F[OIII]? rms uncertainty on F[OIII]0.1aW.m**-2stat.errorfloatnullableFHaLine flux of H{alpha} (1)0.1aW.m**-2phot.flux;em.line.Halpha;spect.linefloate_FHarms uncertainty on FHa0.1aW.m**-2stat.errorfloatF[NII]Line flux of [NII]6583 (1)0.1aW.m**-2phot.flux;spect.linefloate_F[NII]rms uncertainty on F[NII]0.1aW.m**-2stat.errorfloatF[SII]Line flux of [SII]6717,6731 (1)0.1aW.m**-2phot.flux;spect.linefloate_F[SII]rms uncertainty on F[SII]0.1aW.m**-2stat.errorfloatc(Hb)? logarithmic extinction at H{beta})phys.absorptionfloatnullableAbundAbundance, 12+log(O/H)phys.abundfloatlogSFRStar formation ratelog(solMass.yr**-1)phys.SFRfloat