J/MNRAS/435/3376ivo://CDS.VizieR/J/MNRAS/435/3376doi:10.26093/cds/vizier.74353376CDSHeywood I.Martinez-Sansigre A.Willott C.J.Rawlings S.2024-08-06T20:17:14Z2015-03-05T07:54:14ZCDS support team

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

cds-question@unistra.frradio-galaxiesgalaxiesinfrared-sourcesco-line-emissionAn analysis of 44GHz Very Large Array observations of the z=1.574 radio-loud quasar 3C 318 has revealed emission from the redshifted J=1-->0 transition of the CO molecule and spatially resolved the 6.3kpc radio jet associated with the quasar at 115GHz rest frame. The continuum-subtracted line emitter is spatially offset from the quasar nucleus by 0.33arcsec (2.82kpc in projection). This spatial offset has a significance of >8{sigma} and, together with a previously published -400km/s velocity offset measured in the J=2-->1 CO line relative to the systemic redshift of the quasar, rules out a circumnuclear starburst or molecular gas ring and suggests that the quasar host galaxy is either undergoing a major merger with a gas-rich galaxy or is otherwise a highly disrupted system. If the merger scenario is correct, then the event may be in its early stages, acting as the trigger for both the young radio jets in the quasar and a starburst in the merging galaxy. The total molecular gas mass in the spatially offset line emitter as measured from the ground-state CO line MH_2_=3.7(+/-0.4)x10^10^ ({alpha}CO/0.8)M_{sun}_. Assuming that the line emitter can be modelled as a rotating disc, an inclination-dependent upper limit is derived for its dynamical mass M_dyn_sin^2^(i)<3.2x10^9^M_{sun}_, suggesting that for MH2 to remain less than M_dyn_ the inclination angle must be i<16{deg}. The far-infrared and CO luminosities of 246 extragalactic systems are collated from the literature for comparison. The high molecular gas content of 3C 318 is consistent with that of the general population of high-redshift quasars and submillimetre galaxies.2013MNRAS.435.3376Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/435/3376CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/435/3376https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/435/3376http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/435/3376https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/435/3376https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/435/3376http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/435/3376GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/435/3376/tablea1 (Collated LFIR and L'CO values for a range of extragalactic systems)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/435/3376/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/435/3376/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/435/3376/tablea1?GETtext/xml+votable180.050000true11.8880417-25.28880560.0055555555555555566/700 1121 1703 2022 2397 2409 2511 2716 2722 3506 3934 4106 4124 4507 4511 5116 5379 5523 5560 5596 5630 5746 5752 5816 5852 5860 5906 5922 5995 6069 6217 6653 6760 7309 7326 7424 7426 7552 7606 7777 7998 8071 8106 8173 8225 8610 8626 8673 8707 8748 8891 8906 9181 9194 9640 9770 9854 9998 10081 10132 10187 10189 10317 10342 10344 10456 10465 10487 10501 10694 10761 10817 10841 10843 10979 11101 11174 11206 11246 11252 11290 11347 11410 11439 11446 11626 11668 11829 12380 13021 13632 13643 14854 14886 15323 15592 15979 16090 16655 16694 16755 17075 17080 17229 17264 17677 17689-17690 17692 17727 17741 17748 17754-17755 17776 17819 17904 18001 18023 18387 18401 18807 19036 19089 19283 19288 19433 19730 20000 20061 20073 20389 21016 22050 22632 22721 22970 23148 23191 23210 23451 23525 24765 25051 25090 25245 25540 25596-25597 25599 25752 25817 25946 25965 26005 26037 26087 26125 26148 26212 26292 26298 26407 26624 26863 26902 26937 26956 26969 26980 27041 27232 27258 27297 27307 27321 27537 27617 27873 28015 28060 28164 28167 28184 28393 28529 29269 29937 30008 30036 30565 31081 31158 31258 31303 34531 35047 36015 36427 36619 36775 36786 36796 40801 40957 43881 43925 44671 46709 46811 46882 47854 48561 48759 48865https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/435/3376?format=asciiInfraredRadiodefaultJ/MNRAS/435/3376/tablea1Collated LFIR and L'CO values for a range of extragalactic systemsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGalaxy namemeta.id;meta.maincharTypeMorphological typesrc.morph.typecharlog(L'CO)Luminosity of CO lineslog(K.km.s**-1.pc**-2)phys.luminosity;em.line.COfloatlog(LFIR)FIR luminositylog(solLum)phys.luminosity;em.IRfloatLFIR/L'CO[12/2050] FIR-to-CO luminosity ratiophys.luminosity;arith.ratiointz[0/6.5] Redshift (1)src.redshiftfloatRefReferences, in refs.dat filemeta.ref;meta.filecharJcorr[0.56/1] Transition correction factor (2)instr.paramfloatMag[1/173] Factors applied to correct for the effects of any gravitational lensingmaginstr.paramfloatSimbadNameSimbad column added by the CDSmeta.idchar_RAFrom Simbad and Names (right ascension part)degpos.eq.ra;meta.main_DEFrom Simbad and Names (declination part)degpos.eq.dec;meta.mainJ/MNRAS/435/3376/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference codemeta.note;meta.maincharprimaryBibCodeBibCodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notechar