J/A+A/619/A83ivo://CDS.VizieR/J/A+A/619/A83doi:10.26093/cds/vizier.36190083CDSBalmaverde B.Capetti A.Marconi A.Venturi G.Chiaberge M.,Baldi R.D.Baum S.Gilli R.Grandi P.Meyer E.Miley G.O'Dea C.,Sparks W.Torresi E.Tremblay G.2018-12-03T15:11:14Z2018-11-09T08:08:40ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleiWe observed the FR II radio galaxy 3C 459 (z=0.22) with the MUSE spectrograph at the Very Large Telescope (VLT) as part of the MURALES project (a MUse RAdio Loud Emission line Snapshot survey). We detected diffuse nuclear emission and a filamentary ionized gas structure forming a one-sided, triangular-shaped region extending out to ~80kpc. The central emission line region is dominated by two compact knots of similar flux: the first (N1) cospatial with the radio core and the (N2) second located 1.2" (5.3kpc) to the SE. The two regions differ dramatically from the point of view of velocity (with an offset of ~400km/s), line widths, and line ratios. This suggests that we are observing a dual AGN system formed by a radio loud AGN and type 2 QSO companion, which is the result of the recent merger that also produced its disturbed host morphology. The alternative possibility that N2 is just a bright emission line knot resulting from, for example, a jet-cloud interaction, is disfavored because of 1) the presence of a high ionization bicone whose apex is located at N2; 2) the observed narrow line widths; 3) its line luminosity (~10^42^erg/s) typical of luminous QSOs; and 4) its location, which is offset from the jet path. The putative secondary AGN must be highly obscured, since we do not detect any emission in the Chandra and infrared Hubble Space Telescope images.2018A&A...619A..83Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/619/A83CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/619/A83https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/619/A83http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/619/A83https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/619/A83https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/619/A83http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/619/A83GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/619/A83/list (Information on fits datacube)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/619/A83/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/619/A83/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/619/A83/list?GETtext/xml+votable180.050000true349.145954.089450.0055555555555555566/18895https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/619/A83?format=asciidefaultJ/A+A/619/A83/listInformation on fits datacuberecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainscaleScale of the imagearcsec/pixinstr.scalefloatNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintNzNumber of pixels along Z-axismeta.numberintbWaveLower value of wavelength interval0.1nmem.wlfloatBWaveUpper value of wavelength interval0.1nmem.wlfloatdWaveWavelength resolution0.1nmspect.resolutionfloatsizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar