What does Civλ1549 tell us about the physical driver of the Eigenvector Quasar Sequence?

Abstract

Broad emission lines in quasars enable us to "resolve" structure and kinematics of the broad line emitting region (BLR) thought to in- volve an accretion disk feeding a supermassive black hole. Interpretation of broad line measures within the 4DE1 formalism simplifies the apparent confusion among such data by contrasting and unifying properties of so-called high and low accreting Population A and B sources. Hβ serves as an estimator of black hole mass, Eddington ratio and source rest frame, the latter a valuable input for Civλ1549 studies which allow us to isolate the blueshifted wind component. Optical and HST-UV spectra yield Hβ and Civλ1549 spectra for low-luminosity sources while VLT-ISAAC and FORS and TNG-LRS provide spectra for high Luminosity sources. New high S/N data for Civ in high-luminosity quasars are presented here for comparison with the other previously published data. Comparison of Hβ and Civλ1549 profile widths/shifts indicates that much of the emission from the two lines arise in regions with different structure and kinematics. Covering a wide range of luminosity and redshift shows evidence for a correlation between Civλ1549 blueshift and source Eddington ratio, with a weaker trend with source luminosity (similar amplitude outflows are seen over 4 of the 5 dex luminosity range in our combined samples). At low luminosity (z < 0.7) only Population A sources show evidence for a significant outflow while at high luminosity the outflow signature begins to appear in Population B quasars as well.

arXiv comment18 pages, 11 figures

References in corpus (80)

• Determining Central Black Hole Masses in Distant Active Galaxies and Quasars. II. Improved Optical and UV Scaling Relationships
• First Results from the Catalina Real-time Transient Survey
• A Structure for Quasars
• The Ensemble Photometric Variability of ~25000 Quasars in the Sloan Digital Sky Survey
• Systematic Effects in Measurement of Black Hole Masses by Emission-Line Reverberation of Active Galactic Nuclei: Eddington Ratio and Inclination
• Unification of Luminous Type 1 Quasars through CIV Emission
• Broad Emission Line Shifts in Quasars: An Orientation Measure for Radio-Quiet Quasars?
• Numerical simulations of super-critical black hole accretion flows in general relativity
• The M87 Black Hole Mass from Gas-dynamical Models of Space Telescope Imaging Spectrograph Observations
• Observational evidence of quasar feedback quenching star formation at high redshift
• What controls the C IV line profile in active galactic nuclei?
• Ionised outflows in z $\sim$ 2.4 quasar host galaxies
• Black Hole Growth to z = 2 - I: Improved Virial Methods for Measuring M_BH and L/L_Edd
• CIV 1549 as an Eigenvector 1 Parameter for Active Galactic Nuclei
• Correcting CIV-Based Virial Black Hole Masses
• The Structure of the Broad Line Region in AGN: I. Reconstructed Velocity-Delay Maps
• Searching for the Physical Drivers of the Eigenvector 1 Correlation Space
• Radiative Transfer and Acceleration in Magnetocentrifugal Winds
• The Sloan Digital Sky Survey Reverberation Mapping Project: Velocity Shifts of Quasar Emission Lines
• Evolution of Broad-line Emission from Active Galactic Nuclei
• High-Redshift SDSS Quasars with Weak Emission Lines
• Black-Hole Mass and Growth Rate at High Redshift
• Average Quasar Spectra in the Context of Eigenvector 1
• Active galactic nuclei at z~1.5: II. Black Hole Mass estimation by means of broad emission lines
• The Black Hole Mass-Bulge Luminosity Relationship for Active Galactic Nuclei from Reverberation Mapping and Hubble Space Telescope Imaging
• The effect of radiation pressure on emission line profiles and black hole mass determination in active galactic nuclei
• HST STIS Ultraviolet Spectral Evidence for Outflow in Extreme Narrow-line Seyfert 1 Galaxies: I. Data and Analysis
• Detailed Characterization of H_beta emission line profile in low z SDSS quasars
• Searching For the Physical Drivers of Eigenvector 1: Influence of Black Hole Mass and Eddington Ratio
• Dynamics of Accretion Flows Irradiated by a Quasar
• Optical variability of AGN in the PTF/iPTF survey
• CIV Emission Line Properties and Systematic Trends in Quasar Black Hole Mass Estimates
• Average UV Quasar Spectra in the Context of Eigenvector 1: A Baldwin Effect Governed by Eddington Ratio?
• Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. VI. Velocity-resolved Reverberation Mapping of H$\beta$ Line
• The Intrinsically X-ray Weak Quasar PHL 1811. I. X-ray Observations and Spectral Energy Distribution
• Self-shadowing Effects of Slim Accretion Disks in Active Galactic Nuclei: Diverse Appearance of the Broad-line Region
• Pan-STARRS1 variability of XMM-COSMOS AGN. II. Physical correlations and power spectrum analysis
• A spectroscopic analysis of a sample of narrow-line Seyfert 1 galaxies selected from the Sloan Digital Sky Survey
• Broad Line Region Physical Conditions along the Quasar Eigenvector 1 Sequence
• VLT/ISAAC Spectra of the Hbeta Region in Intermediate-Redshift Quasars III. Hbeta Broad Line Profile Analysis and Inferences about BLR Structure
• New Insights on the QSO Radio-Loud/Radio-Quiet Dichotomy: SDSS Spectra in the Context of the 4D Eigenvector1 Parameter Space
• Highly Accreting Quasars: Sample Definition and Possible Cosmological Implications
• On the origin of the C IV Baldwin effect in AGN
• Implications of infalling Fe II - emitting clouds in active galactic nuclei: anisotropic properties
• A non-hydrodynamical model for acceleration of line-driven winds in Active Galactic Nuclei
• Line Shifts, Broad-Line Region Inflow, and the Feeding of AGNs
• BLR Physical Conditions in Extreme Population A Quasars: a Method to Estimate Central Black Hole Mass at High Redshift
• Calibrating CIV-based black hole mass estimators
• The shape of broad-line profiles in AGN
• Weak-Line Quasars at High Redshift: Extremely High Accretion Rates or Anemic Broad-Line Regions?
• VLT/ISAAC Spectra of the H-beta Region in Intermediate Redshift Quasars
• Estimating Black Hole Masses in Quasars Using Broad Optical and UV Emission Lines
• Detection of Rest-frame Optical Lines from X-shooter Spectroscopy of Weak Emission Line Quasars
• VLT/ISAAC Spectra of the H-beta Region in Intermediate-Redshift Quasars II. Black Hole Mass and Eddington Ratio
• The Demise of the Classical BLR in the Luminous Quasar PG1416-129
• On the Accretion Rates and Radiative Efficiencies of the Highest Redshift Quasars
• Weak Emission Line Quasars in the Context of a Modified Baldwin Effect
• Interpreting broad emission-line variations I : Factors influencing the emission-line response
• Bolometric luminosity black-hole growth time and slim accretion discs in active galactic nuclei
• Eddington ratio governs the equivalent width of MgII emission line in active galactic nuclei
• Dissecting the quasar main sequence: insight from host galaxy properties
• Observations of OI and CaII Emission Lines in Quasars: Implications for the Site of FeII Line Emission
• What do the UV Spectra of Narrow-line Seyfert 1 Galaxies tell us about their BLR?
• The CIV Baldwin effect in QSOs from Seventh Data Release of the Sloan Digital Sky Survey
• Reverberation and photoionization estimates of the Broad Line Region Radius in Low-z Quasars
• GTC Spectra of z ~ 2.3 Quasars: Comparison with Local Luminosity Analogues
• OI and CaII observations in intermediate redshift quasars
• The most powerful quasar outflows as revealed by the Civ λ1549 resonance line
• The Case for Optically-Thick High Velocity Broad Line Region Gas in Active Galactic Nuclei
• The Intermediate Line Region in AGN: a region "praeter necessitatem"?
• Blue outliers among intermediate redshift quasars
• Two-Component Structure of the Hbeta Broad-Line Region in Quasars. I. Evidence from Spectral Principal Component Analysis
• The Redshifted Excess in Quasar C IV Broad Emission Lines
• A Close Separation Double Quasar Lensed by a Gas-Rich Galaxy
• Temporal Changes in Quasar Broad Emission Line Profiles and the Gravitationally Lensed Nature of Q1634+267A,B and Q2345+007A,B
• Simultaneous detection and analysis of optical and ultraviolet broad emission lines in quasars at z~2.2
• Strong Response of the very broad h$\beta$ Emission Line in Luminous Radio-Quite Quasar pg1416-129
• The Extreme Ultraviolet Variability of Quasars
• Fifty Years of Quasars: Physical Insights and Potential for Cosmology
• Variability of Broad Emission Lines in High-Luminosity,High-Redshift Quasars

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• A comparative study of the physical properties for a representative sample of Narrow and Broad-line Seyfert galaxies
• Spectroscopic Observations of the Outflowing Wind in the Lensed Quasar SDSS J1001+5027
• The Wind Dynamics of Super-Eddington Sources in FRADO
• Probing the He II re-Ionization ERa via Absorbing C IV Historical Yield (HIERACHY) I: A Strong Outflow from a z~4.7 Quasar
• Exploring the links between quasar winds and radio emission along the Main Sequence at high redshift
• The Energetics of Launching the Most Powerful Jets in Quasars: A Study of 3C82
• Optical and UV properties of a radio-loud and a radio-quiet Population A quasar at high redshift
• Exploring the quasar disc-wind-jet connection with LoTSS and SDSS
• Far-UV Fe Emission as Proxy of Eddington Ratios