J/ApJ/753/42ivo://CDS.VizieR/J/ApJ/753/42doi:10.26093/cds/vizier.17530042CDSComerford J.M.Gerke B.F.Stern D.Cooper M.C.Weiner B.J.,Newman J.A.Madsen K.Barrows R.S.2017-06-02T08:37:29Z2014-03-10T14:39:14ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleispectroscopyredshiftedMerger-remnant galaxies with kiloparsec (kpc) scale separation dual active galactic nuclei (AGNs) should be widespread as a consequence of galaxy mergers and triggered gas accretion onto supermassive black holes, yet very few dual AGNs have been observed. Galaxies with double-peaked narrow AGN emission lines in the Sloan Digital Sky Survey (SDSS) are plausible dual AGN candidates, but their double-peaked profiles could also be the result of gas kinematics or AGN-driven outflows and jets on small or large scales. To help distinguish between these scenarios, we have obtained spatial profiles of the AGN emission via follow-up long-slit spectroscopy of 81 double-peaked narrow-line AGNs in SDSS at 0.03<=z<=0.36 using Lick, Palomar, and MMT Observatories. We find that all 81 systems exhibit double AGN emission components with ~kpc projected spatial separations on the sky (0.2h^-1^_70_kpc<{Delta}x<5.5h^-1^_70_kpc; median {Delta}x=1.1h^-1^_70_kpc), which suggests that they are produced by kiloparsec-scale dual AGNs or kiloparsec-scale outflows, jets, or rotating gaseous disks.2012ApJ...753...42Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/753/42CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/269 : SDSS Quasar Catalog, DR9Q (Paris+, 2012)J/ApJS/201/31 : Emission-line galaxies from SDSS. I. (Ge+, 2012)J/ApJS/201/23 : Spectroscopy of 88 z<0.7 SDSS QSOs (Eracleous+, 2012)J/ApJ/716/866 : SDSS search for binary AGN (Smith+, 2010)J/ApJ/708/427 : Type 2 AGNs with double-peaked [OIII] lines (Liu+, 2010)J/ApJ/705/L76 : AGNs with double-peaked [OIII] lines (Wang+, 2009)J/AJ/126/1720 : ugriz and H{alpha} of double-peaked AGN (Strateva+, 2003)http://www.sdss.org/ : SDSS home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/753/42https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/753/42http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/753/42https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/753/42https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/753/42http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/753/42GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/753/42/dagnc (Observations and measurements of the 81 double-peaked AGNs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/753/42/dagnc?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/753/42/dagnc?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/753/42/dagnc?GETtext/xml+votable180.050000true0.70445830.75133330.0055555555555555566/4290 4366 4525 4573 4574 4851 4939 4966 4998 5203 5259 5314 5322 5393 5666 5694 5841 6220 6236 6356 6471 6494 6544 6560 6568 6582 6623 6640 6917 6932 7224 7266 7287 7422 8514 8543 8659 8787 8972 9083 9231 9265 9356 9433 9950 10213 10534 10779 11042 11149 17497 17555 17566 17818 17827 17832 18083 18395 18518 18519 18545 18774 18791 18829 18864 19114 19457 19678 22003 22714 27686 27710 27879 28244 28311 28409 28579 28617 31547 31660https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/753/42?format=asciiOpticaldefaultJ/ApJ/753/42/dagncObservations and measurements of the 81 double-peaked AGNsSNameSDSS short name (HHMM+DDMM)meta.idcharell[0/1] Ellipticitysrc.ellipticityfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSDSSSDSS designation (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharT/ITelescope/instrument (Lick/Kast, MMT/Blue Channel or Palomar/DBSP)meta.notecharDate1First observation date; UT (1)time.epoch;obsnullableDate2Second observation date if differs from Date1 (1)time.epoch;obsnullablePA1[0/180] Position angle of slit in first observation (degrees east of north)degpos.posAng;obsfloatPA2[0/180] Position angle of slit in second observation (degrees east of north)degpos.posAng;obsfloatExp1Exposure time at first position angle (2)stime.duration;obs.exposureintExp2? Exposure time at second position angle (2)stime.duration;obs.exposureintnullableXcatCross-match with Liu et al. 2010 (J/ApJ/716/866), Smith et al. 2010 (J/ApJ/708/427), and Wang et al. 2009 (J/ApJ/705/L76) within 2"meta.ref.urlintnullableDR9Display the photometric SDSS-DR9 catalog (Cat. V/139) within 1"meta.ref.urlcharSloanDisplay the SDSS online data for the nearest SDSSmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharNEDSimbad column added by the CDSmeta.refcharn_SName[p,s ] Interesting features of the candidate (4)meta.notecharz[0.03/0.4] Redshiftsrc.redshiftfloatT[1/2] Spectral type of the AGN (type I or II)meta.code.classintdV[222/686] Velocity offset {Delta}V between the [OIII]5007 peaks in the SDSS spectrum.km/sphys.veloc;arith.diffinte_dVError in dVkm/sstat.errorintdXangAngular projected spatial offset between the two [OIII]5007 emission features on the sky.arcsecpos;arith.difffloate_dXangError in dXangarcsecstat.errorfloatdXkpcPhysical projected spatial offset (in kpc/h_70_)kpcpos.distancefloate_dXkpcError in dXkpckpcstat.errorfloatEm[ce] Physical extent of double AGN emission features in 2D spectrum: compact or extended.meta.codecharPA[0/180] Position angle between the two [OIII]5007 emission features on the sky (East of North)degpos.posAng;obs.fieldfloate_PAError in PA and dPAdegstat.errorfloatdPA[0/90] Angle with major axis (5)degpos.angDistancefloatOobsOther published observation(s) (6)meta.code;obscharRefReference(s) (7)meta.ref;pos.framechar_RAPositions from SDSS names (right ascension part)degpos.eq.ra;meta.main_DEPositions from SDSS names (declination part)degpos.eq.dec;meta.main