X-ray properties of dust-obscured galaxies with broad optical/UV emission lines

Abstract

Dust-obscured galaxies (DOGs) with extreme infrared luminosities may represent a key phase in the co-evolution of galaxies and supermassive black holes. We select 12 DOGs at $0.3\lesssim z\lesssim 1.0$ with broad Mg II or H$\beta$ emission lines and investigate their X-ray properties utilizing snapshot observations ($\sim 3\mathrm{ks}$ per source) with Chandra. By assuming that the broad lines are broadened due to virial motions of broad-line regions, we find that our sources generally have high Eddington ratios (${\lambda }_{\mathrm{Edd}}$). Our sources generally have moderate intrinsic X-ray luminosities ($L_{\mathrm{X}}\lesssim 10^{45}\mathrm{erg}{\mathrm{s}}^{-1}$), which are similar to those of other DOGs, but are more obscured. They also present moderate outflows and intense starbursts. Based on these findings, we conclude that high-${\lambda }_{\mathrm{Edd}}$ DOGs are closer to the peaks of both host-galaxy and black-hole growth compared to other DOGs, and that AGN feedback has not swept away their reservoirs of gas. However, we cannot fully rule out the possibility that the broad lines are broadened by outflows, at least for some sources. We investigate the relations among $L_{\mathrm{X}}$, AGN rest-frame $6\mu \mathrm{m}$ monochromatic luminosity, and AGN bolometric luminosity, and find the relations are consistent with the expected ones.

19 pages, 14 figures, accepted for publication in MNRAS

References in corpus (50)

• HI4PI: A full-sky HI survey based on EBHIS and GASS
• A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: I. Galaxy Mergers & Quasar Activity
• A Catalog of Quasar Properties from SDSS DR7
• A Highly Consistent Framework for the Evolution of the Star-Forming "Main Sequence" from z~0-6
• An Observational Determination of the Bolometric Quasar Luminosity Function
• The Sloan Digital Sky Survey Quasar Catalog: twelfth data release
• Simultaneous X-ray/optical/UV snapshots of active galactic nuclei from XMM-Newton: spectral energy distributions for the reverberation mapped sample
• Cosmic X-ray Surveys of Distant Active Galaxies: The Demographics, Physics, and Ecology of Growing Supermassive Black Holes
• A Significant Population of Very Luminous Dust-Obscured Galaxies at Redshift z ~ 2
• X-CIGALE: fitting AGN/galaxy SEDs from X-ray to infrared
• The Hard X-ray Spectrum as a Probe for Black-Hole Growth in Radio-Quiet Active Galactic Nuclei
• Constraining the properties of AGN host galaxies with Spectral Energy Distribution modeling
• On the use of C-stat in testing models for X-ray spectra
• The First Hyper-Luminous Infrared Galaxy Discovered by WISE
• Half of the Most Luminous Quasars May Be Obscured: Investigating the Nature of WISE-Selected Hot, Dust-Obscured Galaxies
• X-shooter reveals powerful outflows in z~1.5 X-ray selected obscured quasi stellar objects
• X-ray Insights into the Nature of PHL 1811 Analogs and Weak Emission-Line Quasars: Unification with a Geometrically Thick Accretion Disk?
• The effect of radiation pressure on dusty absorbing gas around AGN
• The Most Luminous Galaxies Discovered by WISE
• Submillimeter Follow-up of WISE-Selected Hyperluminous Galaxies
• The young stellar population in M17 revealed by Chandra
• The X-Ray to Mid-Infrared Relation of AGN at High Luminosity
• NuSTAR and XMM-Newton Observations of Luminous, Heavily Obscured, WISE-Selected Quasars at z ~ 2
• The nature of faint Spitzer-selected dust-obscured galaxies
• A Chandra Search for Coronal X Rays from the Cool White Dwarf GD 356
• An accretion disc-corona model for X-ray spectra of active galactic nuclei
• The X-ray properties of $z>6$ quasars: no evident evolution of accretion physics in the first Gyr of the Universe
• Radiation pressure and absorption in AGN: results from a complete unbiased sample from Swift
• The WISSH Quasars Project III. X-ray properties of hyper-luminous quasars
• Evolution in the Black Hole - Galaxy Scaling Relations and the Duty Cycle of Nuclear Activity in Star-Forming Galaxies
• Revealing X-ray obscured quasars in SWIRE sources with extreme mid-IR/optical flux ratios
• The Host-Galaxy Properties of Type 1 Versus Type 2 Active Galactic Nuclei
• Submillimetre observations of WISE-selected high-redshift, luminous, dusty galaxies
• NuSTAR observations of WISE J1036+0449, a Galaxy at z$\sim 1$ obscured by hot dust
• Virial Black Hole Mass Estimates for 280,000 AGNs from the SDSS Broad-Band Photometry and Single Epoch Spectra
• Heavy X-ray obscuration in the most-luminous galaxies discovered by WISE
• The correlations between optical/UV broad lines and X-ray emission for a large sample of quasars
• Coronal-Line Forest AGN: the best view of the inner edge of the AGN torus?
• Ionized gas outflows in infrared-bright dust-obscured galaxies selected with WISE and SDSS
• [OIII] Emission Line Properties in a New Sample of Heavily Reddened Quasars at $z>2$
• X-ray Observations of Luminous Dusty Quasars at z > 2
• A new bright z=6.82 quasar discovered with VISTA: VHS J0411-0907
• Spectral Classification and Ionized Gas Outflows in $z\sim 2$ WISE-Selected Hot Dust-Obscured Galaxies
• NuSTAR Discovery of a Compton-thick Dust-obscured Galaxy WISE J0825+3002
• Calibrating Mg II-based black-hole mass estimators using Low-to-High-Luminosity Active Galactic Nuclei
• Peering through the dust II: $XMM-Newton$ observations of two additional FIRST-2MASS red quasars
• The Hunt for Red Quasars: Luminous Obscured Black Hole Growth Unveiled in the Stripe 82 X-ray Survey
• Searching for luminous absorbed sources in the WISE AGN catalogue
• SOFIA/HAWC+ View of an Extremely Luminous Infrared Galaxy, WISE1013+6112
• Alma Reveals A Gas-rich, Maximum-starburst In The Hyperluminous, Dust-obscured Quasar W0533-3401 AT $z\sim 2.9$

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• A dusty compact object bridging galaxies and quasars at cosmic dawn
• Spectral Energy Distributions in Three Deep-Drilling Fields of the Vera C. Rubin Observatory Legacy Survey of Space and Time: Source Classification and Galaxy Properties
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