Mid-Infrared Selected Quasars I: Virial Black Hole Mass and Eddington Ratios

Abstract

We provide a catalog of 391 mid-infrared-selected (MIR, 24$\mu$m) broad-emission-line (BEL, type 1) quasars in the 22 deg${}^2$ SWIRE Lockman Hole field. This quasar sample is selected in the MIR from Spitzer MIPS with $S_{24}>400\mu$Jy, jointly with an optical magnitude limit of r (AB) $<$ 22.5 for broad line identification. The catalog is based on MMT and SDSS spectroscopy to select BEL quasars, extends the SDSS coverage to fainter magnitudes and lower redshifts, and recovers a more complete quasar population. The MIR-selected quasar sample peaks at $z\sim$1.4, and recovers a significant and constant (20\%) fraction of extended objects with SDSS photometry across magnitudes, which was not included in the SDSS quasar survey dominated by point sources. This sample also recovers a significant population of $z<3$ quasars at $i>19.1$. We then investigate the continuum luminosity and line profiles of these MIR quasars, and estimate their virial black hole masses and the Eddington ratios. The SMBH mass shows evidence of downsizing, though the Eddington ratios remain constant at $1<z<4$. Compared to point sources in the same redshift range, extended sources at $z<1$ show systematically lower Eddington ratios. The catalog and spectra are publicly available online.

arXiv comment72 pages, 27 figures, 16 tables; ApJ accepted

References in corpus (100)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
• The Seventh Data Release of the Sloan Digital Sky Survey
• Unified Schemes for Radio-Loud Active Galactic Nuclei
• A Fundamental Relation Between Supermassive Black Holes and Their Host Galaxies
• Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies
• The Host Galaxies of AGN
• A Relationship Between Nuclear Black Hole Mass and Galaxy Velocity Dispersion
• The Infrared Array Camera (IRAC) for the Spitzer Space Telescope
• Herschel Space Observatory - An ESA facility for far-infrared and submillimetre astronomy
• The slope of the black-hole mass versus velocity dispersion correlation
• Reverberation Measurements for 17 Quasars and the Size-Mass-Luminosity Relations in Active Galactic Nuclei
• Composite Quasar Spectra From the Sloan Digital Sky Survey
• A Unified, Merger-Driven Model for the Origin of Starbursts, Quasars, the Cosmic X-Ray Background, Supermassive Black Holes and Galaxy Spheroids
• Central Masses and Broad-Line Region Sizes of Active Galactic Nuclei. II. A Homogeneous Analysis of a Large Reverberation-Mapping Database
• Cold streams in early massive hot haloes as the main mode of galaxy formation
• The Relation between Black Hole Mass, Bulge Mass, and Near-Infrared Luminosity
• The u'g'r'i'z' Standard Star Network
• A Catalog of Quasar Properties from SDSS DR7
• Determining Central Black Hole Masses in Distant Active Galaxies and Quasars. II. Improved Optical and UV Scaling Relationships
• Spectral Energy Distributions and Multiwavelength Selection of Type 1 Quasars
• Spectroscopic Target Selection in the Sloan Digital Sky Survey: The Quasar Sample
• The Sloan Digital Sky Survey Quasar Catalog V. Seventh Data Release
• Mid-Infrared Selection of Active Galaxies
• The SDSS Quasar Survey: Quasar Luminosity Function from Data Release Three
• Gas-regulation of galaxies: the evolution of the cosmic sSFR, the metallicity-mass-SFR relation and the stellar content of haloes
• The Low-Luminosity End of the Radius-Luminosity Relationship for Active Galactic Nuclei
• Mid-Infrared Selection of AGN with the Wide-Field Infrared Survey Explorer. I. Characterizing WISE-Selected AGN in COSMOS
• AGN Black Hole Masses and Bolometric Luminosities
• A Structure for Quasars
• A Scheme to Unify Low-Power Accreting Black Holes - Jet-Dominated Accretion Flows and the Radio/X-Ray Correlation
• The DEEP2 Galaxy Redshift Survey: Design, Observations, Data Reduction, and Redshifts
• SWIRE: The SIRTF Wide-area InfraRed Extragalactic Survey
• Obscured and unobscured active galactic nuclei in the Spitzer Space Telescope First Look Survey
• Identifying Luminous AGN in Deep Surveys: Revised IRAC Selection Criteria
• Luminosity-dependent evolution of soft X-ray selected AGN: New Chandra and XMM-Newton surveys
• The Radius-Luminosity Relationship for Active Galactic Nuclei: The Effect of Host-Galaxy Starlight on Luminosity Measurements II. The Full Sample of Reverberation-Mapped AGNs
• The cosmological evolution of quasar black-hole masses
• An Empirical Ultraviolet Template for Iron Emission in Quasars as Derived from I Zw 1
• On the black hole - bulge mass relation in active and inactive galaxies
• Biases in Virial Black Hole Masses: An SDSS Perspective
• The Sloan Digital Sky Survey Quasar Catalog IV. Fifth Data Release
• Systematic Effects in Measurement of Black Hole Masses by Emission-Line Reverberation of Active Galactic Nuclei: Eddington Ratio and Inclination
• Black Hole Masses and Eddington Ratios at 0.3<z<4
• Unification of Luminous Type 1 Quasars through CIV Emission
• A Catalog of Broad Absorption Line Quasars from the Sloan Digital Sky Survey Third Data Release
• The Radius-Luminosity Relationship for Active Galactic Nuclei: The Effect of Host-Galaxy Starlight on Luminosity Measurements
• Mass Functions of the Active Black Holes in Distant Quasars from the Large Bright Quasar Survey, the Bright Quasar Survey, and the Color-Selected Sample of the SDSS Fall Equatorial Stripe
• Red and Reddened Quasars in the Sloan Digital Sky Survey
• The DEEP2 Galaxy Redshift Survey: The Galaxy Luminosity Function to z ~ 1
• Photometric redshift and classification for the XMM-COSMOS sources
• Hectospec, the MMT's 300 Optical Fiber-Fed Spectrograph
• Broad Emission Line Shifts in Quasars: An Orientation Measure for Radio-Quiet Quasars?
• The infrared luminosity function of galaxies at redshifts z=1 and z~2 in the GOODS fields
• Spitzer Quasar and ULIRG Evolution Study (QUEST): II. The Spectral Energy Distributions of Palomar-Green Quasars
• The non-causal origin of the black hole-galaxy scaling relations
• The Luminosity Function of X-ray Selected Active Galactic Nuclei: Evolution of Supermassive Black Holes at High Redshift
• Cold flows and the first quasars
• How Mergers May Affect The Mass Scaling Relations Between Black Holes, Galaxies, and Other Gravitationally Bound Systems
• Hydrodynamics of high-redshift galaxy collisions: From gas-rich disks to dispersion-dominated mergers and compact spheroids
• CIV 1549 as an Eigenvector 1 Parameter for Active Galactic Nuclei
• Estimating Black Hole Masses in Active Galactic Nuclei Using the MgII 2800 Emission Line
• Chandra and Spitzer unveil heavily obscured quasars in the SWIRE/Chandra Survey
• The Intrinsic Fraction of Broad Absorption Line Quasars
• FIRST-2MASS Red Quasars: Transitional Objects Emerging from the Dust
• The Demographics of Broad Line Quasars in the Mass-Luminosity Plane II. Black Hole Mass and Eddington Ratio Functions
• Black Hole Mass Estimates Based on CIV are Consistent with Those Based on the Balmer Lines
• The FIRST-2MASS Red Quasar Survey II: An anomalously high fraction of LoBALs in searches for dust-reddened quasars
• Spitzer Reveals Hidden Quasar Nuclei in Some Powerful FR II Radio Galaxies
• The FIRST-2MASS Red Quasar Survey
• Widespread and Hidden Active Galactic Nuclei in Star-Forming Galaxies at Redshift > 0.3
• Are Outflows Biasing Single-Epoch CIV Black Hole Mass Estimates?
• Narrow associated QSO absorbers: clustering, outflows and the line-of-sight proximity effect
• FIRST-2MASS Sources Below the APM Detection Threshold: A Population of Highly Reddened Quasars
• The Quasar Mass-Luminosity Plane I: A Sub-Eddington Limit for Quasars
• Confusion in the infrared: Spitzer and beyond
• Simulating the Spitzer mid-IR color-color diagrams
• Luminosity Function Constraints on the Evolution of Massive Red Galaxies Since z~0.9
• The Spitzer mid-infrared AGN survey. I - optical and near-infrared spectroscopy of candidate obscured and normal AGN selected in the mid-infrared
• An Empirical Calibration of the Completeness of the SDSS Quasar Survey
• A Large, Uniform Sample of X-ray Emitting AGN: Selection Approach and an Initial Catalog from the ROSAT All-Sky and Sloan Digital Sky Surveys
• Calibrating CIV-based black hole mass estimators
• Mid-Infrared Diagnostics of LINERs
• The Civ line width distribution for quasars and its implications for broad-line region dynamics and virial mass estimation
• Occurrence and Global Properties of Narrow CIV lambda 1549 Absorption Lines in Moderate-Redshift Quasars
• The Ultraviolet Emission Properties of Five Low-Redshift Active Galactic Nuclei at High Signal to Noise and Spectral Resolution
• Eight-Dimensional Mid-Infrared/Optical Bayesian Quasar Selection
• The Far-Infrared Spectral Energy Distributions of X-ray-selected Active Galaxies
• CIV Line-Width Anomalies: The Perils of Low S/N Spectra
• Galaxy Counts at 24 Microns in the SWIRE Fields
• A MMT/Hectospec Redshift Survey of 24 Micron Sources in the Spitzer First Look Survey
• Tracing the evolution of Active Galactic Nuclei host galaxies over the last 9 Gyrs of Cosmic time
• The Reddest Quasars II. A gravitationally-lensed FeLoBAL quasar
• On the link between associated MgII absorbers and star formation in quasar hosts
• Spectrophotometry with Hectospec, the MMT's Fiber-Fed Spectrograph
• Cosmic Evolution of Star Formation In SDSS Quasar Hosts Since z=1
• Spectral Energy Distributions of Type 1 AGN in XMM-COSMOS Survey II - Shape Evolution
• A Population of Dust-Rich Quasars at z ~ 1.5
• Herschel ATLAS: The cosmic star formation history of quasar host galaxies
• Downsizing of supermassive black holes from the SDSS quasar survey

Cited by in corpus (7)

• Composite Spectral Energy Distributions and Infrared-Optical Colors of Type 1 and Type 2 Quasars
• Is there a relationship between AGN and star formation in IR-bright AGNs?
• The Accretion History of AGN: A Newly Defined Population of Cold Quasars
• The Black Hole Mass Function Across Cosmic Times II. Heavy Seeds and (Super)Massive Black Holes
• Binary AGN simulations with radiation pressure reveal a new duty cycle, and a reduction of gravitational torque, through 'minitori' structures
• A Complete 16 micron-Selected Galaxy Sample at $z\sim 1$: Mid-infrared Spectral Energy Distributions
• Host galaxy and nuclear properties of IR-selected AGNs with and without outflow signatures