J/ApJ/900/47ivo://CDS.VizieR/J/ApJ/900/47doi:10.26093/cds/vizier.19000047CDSLi Z.Zhou H.Hao L.Shi X.Zhang S.Ji T.Sun L.Dai X.2022-03-21T09:27:00Z2022-01-12T08:31:44ZCDS support team

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

cds-question@unistra.frquasarsvisible-astronomyspectroscopyinfrared-astronomyultraviolet-astronomyWe present detailed studies of the partially obscured quasar 2MASSJ151653.23+190048.2 with continuous broadband spectrophotometry from near-infrared (NIR) through optical to ultraviolet (UV). The NIR and optical spectra show strong broad emission lines, while the UV spectrum is dominated by a set of rich intermediate-width emission lines (IELs). These IELs, unshifted with respect to the quasar systemic velocity measured by narrow emission lines, share a common profile of about 1900km/s in FWHM, in contrast to the Balmer and Paschen broad emission lines of FWHM ~6300km/s observed in the optical and NIR. The intermediate width of these lines indicates that the emitting gas may come from the dusty torus region. However, the observed peculiar IEL intensity ratios, such as NV{lambda}1240/Ly{alpha}, indicate that the emitting gas has a very high density, up to ~10^13^cm^-3^. Such a high density is unusual for gas around the dusty torus region, except that we consider mechanisms such as shocks that can produce local ultradense gas. We speculate that these emission lines could originate from the shock region, possibly induced by the quasar outflow colliding with the inner wall of the dusty torus. If true, this may give us an opportunity to peep at the quasar outflows at the scale of the dusty torus that have so far been elusive due to the limited resolving powers of existing facilities.2020ApJ...900...47Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/900/47CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/hst : HST Archived Exposures Catalog (STScI, 2007)B/chandra : The Chandra Archive Log (CXC, 1999-2014)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)II/311 : WISE All-Sky Data Release (Cutri+ 2012)V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)II/335 : Revised cat. of GALEX UV sources (GUVcat_AIS GR6+7) (Bianchi+ 2017)IX/57 : The Chandra Source Catalog (CSC), Release 2.0 (Evans+, 2019)J/ApJ/569/23 : Optical polarisation of 2MASS QSOs (Smith+, 2002)J/ApJ/613/682 : AGN central masses & broad-line region sizes (Peterson+, 2004)J/A+A/417/515 : I Zw 1 unusual emission line spectrum (Veron-Cetty+, 2004)J/ApJ/683/L115 : Intermediate-line region in quasars (Hu+, 2008)J/ApJ/700/1173 : Analysis of broad-line regions in AGNs (Zhu+, 2009)J/MNRAS/414/500 : Spitzer/IRS ATLAS project source (Hernan-Caballero+, 2011)J/ApJ/730/19 : IR spectra and SEDs for starbursts and AGNs (Sargsyan+, 2011)J/ApJ/736/42 : HST QSO Catalog (Ribaudo+, 2011)J/ApJ/736/86 : FeII emission in SDSS type 1 AGNs (Dong+, 2011)J/ApJS/214/23 : IR spectra and photometry of z<0.5 quasars (Shi+, 2014)J/ApJ/818/113 : HST observations of QSOs with medium spectra (Neeleman+, 2016)J/ApJ/818/L14 : RM AGNs accretion rates and BH masses (Du+, 2016)J/ApJ/856/6 : SEAMBHs IX. 10 new H{beta} light curves (Du+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/900/47https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/900/47http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/900/47https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/900/47https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/900/47http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/900/47GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapUVOpticalInfrareddefaultJ/ApJ/900/47/fig2-nirNIR spectrum obtained by Hale TripleSpec (Data behind Figure 2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[8279.86/20707.8] Wavelength, rest frame, in {AA} units0.1nmmeta.unit;em.wldoubleFlux[71/214] Flux in 10^-17^erg/s/cm^2^/{AA} units1e-17cW.m**-2.nm**-1meta.unit;phot.fluxdoubleJ/ApJ/900/47/fig2-optOptical spectrum combined by Shane DoubleSpec and Hale DoubleSpec spectrum (Data behind Figure 2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[2886.4/7818.8] Wavelength, rest frame, in {AA} units0.1nmmeta.unit;em.wlfloatFlux[111/1329] Flux in 10^-17^erg/s/cm^2^/{AA} units1e-17cW.m**-2.nm**-1meta.unit;phot.fluxdoubleJ/ApJ/900/47/fig2-uvUV spectrum taken by HST/STIS (Data behind Figure 2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[962/2650] Wavelength, rest frame, in {AA} units0.1nmmeta.unit;em.wldoubleFlux[-482/1843] Flux in 10^-17^erg/s/cm^2^/{AA} units1e-17cW.m**-2.nm**-1meta.unit;phot.fluxdouble