Hot-Dust-Poor Quasars in Mid-Infrared and Optically Selected Samples

Abstract

We show that the Hot-Dust-Poor (HDP) quasars, originally found in the X-ray selected XMM-COSMOS type 1 AGN sample, are just as common in two samples selected at optical/infrared wavelengths: the Richards et al. Spitzer/SDSS sample ($8.7$), and the PG-quasar dominated sample of Elvis et al. ($9.5$). The properties of the HDP quasars in these two samples are consistent with the XMM-COSMOS sample, except that, at the $99$ significance, a larger proportion of the HDP quasars in the Spitzer/SDSS sample have weak host galaxy contributions, probably due to the selection criteria used. Either the host-dust is destroyed (dynamically or by radiation), or is offset from the central black hole due to recoiling. Alternatively, the universality of HDP quasars in samples with different selection methods and the continuous distribution of dust covering factor in type 1 AGNs, suggest that the range of SEDs could be related to the range of tilts in warped fueling disks, as in the model of Lawrence and Elvis (2010), with HDP quasars having relatively small warps.

27 pages, 10 figures, ApJ accepted

References in corpus (18)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• The WFCAM Science Archive
• The UKIRT Wide Field Camera ZYJHK Photometric System: Calibration from 2MASS
• Optical spectroscopy and X-ray detections of a sample of quasars and AGN selected in the mid-infrared from two Spitzer wide-area surveys
• Spitzer's Contribution to the AGN Population
• Black-Hole Spin and Galactic Morphology
• The characteristic blue spectra of accretion disks in quasars as uncovered in the infrared
• Recoiling Black Holes in Merging Galaxies: Relationship to AGN Lifetimes, Starbursts, and the M-sigma Relation
• Observable Signatures of a Black Hole Ejected by Gravitational Radiation Recoil in a Galaxy Merger
• The Near-Infrared Broad Emission Line Region of Active Galactic Nuclei -- I. The Observations
• Dust-free quasars in the early Universe
• Effects of gravitational-wave recoil on the dynamics and growth of supermassive black holes
• Broad Line Region Physical Conditions along the Quasar Eigenvector 1 Sequence
• Properties of dusty tori in AGN: I. The Case of SWIRE/SDSS Quasars
• Hot-Dust-Poor Type 1 Active Galactic Nuclei in the COSMOS Survey
• Off-nuclear AGN as a signature of recoiling massive black holes
• Recoiling Massive Black Holes in Gas-Rich Galaxy Mergers

Cited by in corpus (39)

• Active Galactic Nuclei: what's in a name?
• Identifying Luminous AGN in Deep Surveys: Revised IRAC Selection Criteria
• What Drives the Growth of Black Holes?
• Bolometric luminosities and Eddington ratios of X-ray selected Active Galactic Nuclei in the XMM-COSMOS survey
• Intermediate-mass black holes in dwarf galaxies out to redshift $\sim$ 2.4 in the Chandra COSMOS Legacy Survey
• The SINS/zC-SINF survey of z~2 galaxy kinematics: Evidence for powerful AGN-driven nuclear outflows in massive star-forming galaxies
• Dust inflated accretion disc as the origin of the Broad Line Region in Active Galactic Nuclei
• Spectral Energy Distributions of QSOs at z>5: common AGN-heated dust and occasionally strong star-formation
• AGN Obscuration and the Unified Model
• Recoiling black holes: electromagnetic signatures, candidates, and astrophysical implications
• Self-shadowing Effects of Slim Accretion Disks in Active Galactic Nuclei: Diverse Appearance of the Broad-line Region
• Heavily reddened type 1 quasars at z > 2 I: Evidence for significant obscured black-hole growth at the highest quasar luminosities
• The MOSDEF survey: AGN multi-wavelength identification, selection biases and host galaxy properties
• Dust-Deficient Palomar-Green Quasars and the Diversity of AGN Intrinsic IR Emission
• Spectral Energy Distributions of Type 1 AGN in the COSMOS Survey I - The XMM-COSMOS Sample
• Polar Dust, Nuclear Obscuration and IR SED Diversity in Type-1 AGNs
• Hot Dust Clouds with Pure Graphite Composition around Type-I Active Galactic Nuclei
• The Contribution of Host Galaxies to the Infrared Energy Output of $z\gtrsim 5.0$ QUASARS
• SDSS-IV eBOSS Spectroscopy of X-ray and WISE AGN in Stripe 82X: Overview of the Demographics of X-ray and Mid-Infrared Selected Active Galactic Nuclei
• No signs of star formation being regulated in the most luminous quasars at z~2 with ALMA
• Infrared Spectral Energy Distribution and Variability of Active Galactic Nuclei: Clues to the Structure of Circumnuclear Material
• Spectral Energy Distributions of Type 1 AGN in XMM-COSMOS Survey II - Shape Evolution
• Completing the Census of AGN in GOODS-S/HUDF: New Ultra-Deep Radio Imaging and Predictions for JWST
• Giant scattering cones in obscured quasars
• Exploring the link between C IV outflow kinematics and sublimation-temperature dust in quasars
• A Quasar-Galaxy Mixing Diagram: Quasar Spectral Energy Distribution Shapes in the Optical to Near-Infrared
• Herschel observed Stripe 82 quasars and their host galaxies: connections between the AGN activity and the host galaxy star formation
• Physical Properties of Luminous Dust Poor Quasars
• THE MOSDEF SURVEY: The Nature of Mid-Infrared Excess Galaxies and a Comparison of IR and UV Star Formation Tracers at z~2
• The Frequency of Intrinsic X-ray Weakness Among Broad Absorption Line Quasars
• Outflow and hot dust emission in high redshift quasars
• Mid-infrared Variability of Low-redshift Active Galactic Nuclei : Constraints on a Hot Dust Component with a Variable Covering Factor
• The z=0.54 LoBAL Quasar SDSS J085053.12+445122.5: II. The Nature of Partial Covering in the Broad-Absorption-Line Outflow
• Powerful extragalactic jets dissipate their kinetic energy far from the central black hole
• Recoiling Supermassive Black Holes in Spin-flip Radio Galaxies
• The Impact of the Dusty Torus on Obscured Quasar Halo Mass Measurements
• The nature of massive black hole binary candidates: II. Spectral energy distribution atlas
• The near-infrared SED of blue quasars: what drives the evolution of the dusty torus?
• X-ray and Multiwavelength Insights into the Inner Structure of High-Luminosity Disc-Like Emitters