The fraction and kinematics of broad absorption line quasars across cosmic time

Abstract

Luminous quasars are powerful targets to investigate the role of feedback from supermassive black-holes (BHs) in regulating the growth phases of BHs themselves and of their host galaxies, up to the highest redshifts. Here we investigate the cosmic evolution of the occurrence and kinematics of BH-driven outflows, as traced by broad absorption line (BAL) features, due to the C IV ionic transition. We exploit a sample of 1935 quasars quasars at $z=2.1-6.6$ with bolometric luminosity log($L_{\mathrm{bol}}/$erg s${}^{-1})\gtrsim 46.5$, drawn from the Sloan Digital Sky Survey and from the X-shooter legacy survey of Quasars at Reionisation (XQR-30). We consider rest-frame optical bright quasars to minimise observational biases due to quasar selection criteria. We apply a homogeneous BAL identification analysis, based on employing composite template spectra to estimate the quasar intrinsic emission. We find a BAL quasar fraction close to 20\% at $z\sim 2-4$, while it increases to almost 50\% at $z\sim 6$. The velocity and width of the BAL features also increase at $z\gtrsim 4.5$. We exclude that the redshift evolution of the BAL properties is due to differences in terms of quasar luminosity and accretion rate. These results suggest significant BH feedback occurring in the 1 Gyr old Universe, likely affecting the growth of BHs and, possibly, of their host galaxies, as supported by models of early BH and galaxy evolution.

Accepted for publication in ApJ

References in corpus (57)

• Array Programming with NumPy
• A Catalog of Quasar Properties from SDSS DR7
• Molecfit: A general tool for telluric absorption correction. I. Method and application to ESO instruments
• The Sloan Digital Sky Survey Quasar Catalog IV. Fifth Data Release
• A Luminous Quasar at Redshift 7.642
• A Catalog of Broad Absorption Line Quasars in Sloan Digital Sky Survey Data Release 5
• The Pan-STARRS1 distant z>5.6 quasar survey: more than 100 quasars within the first Gyr of the universe
• Physical properties of 15 quasars at $z\gtrsim 6.5$
• Hydrogen reionisation ends by $z=5.3$: Lyman-$\alpha$ optical depth measured by the XQR-30 sample
• The Evolution of Black Hole Mass and Spin in Active Galactic Nuclei
• Evidence for Quasar Activity Triggered by Galaxy Mergers in HST Observations of Dust-reddened Quasars
• Black hole masses and enrichment of z ~ 6 SDSS quasars
• Quasars at z=6: the survival of the fittest
• The WISSH Quasars Project I. Powerful ionised outflows in hyper-luminous quasars
• Correcting CIV-Based Virial Black Hole Masses
• The Intrinsic Fraction of Broad Absorption Line Quasars
• On the Fraction of Quasars with Outflows
• Linking Macro, Meso, and Micro Scales in Multiphase AGN Feeding and Feedback
• Unifying the micro and macro properties of AGN feeding and feedback
• The Kinematics of z ~ 6 Quasar Host Galaxies
• Outflows and the Physical Properties of Quasars
• SUPER-II: Spatially resolved ionized gas kinematics and scaling relations in z~2 AGN host galaxies
• The X-shooter/ALMA Sample of Quasars in the Epoch of Reionization. II. Black Hole Masses, Eddington Ratios, and the Formation of the First Quasars
• The X-SHOOTER/ALMA sample of Quasars in the Epoch of Reionization. I. NIR spectral modeling, iron enrichment and broad emission line properties
• Heavily reddened type 1 quasars at z > 2 I: Evidence for significant obscured black-hole growth at the highest quasar luminosities
• Luminous K-band Selected Quasars from UKIDSS
• Detecting and Characterizing Young Quasars I: Systemic Redshifts and Proximity Zones Measurements
• Modeling Kilonova Light Curves: Dependence on Nuclear Inputs
• The ALMA view of the high-redshift relation between supermassive black holes and their host galaxies
• Long Dark Gaps in the Ly$\beta$ Forest at $z<6$: Evidence of Ultra Late Reionization from XQR-30 Spectra
• Widespread, strong outflows in XQR-30 quasars at the Reionisation epoch
• New Constraints on Quasar Evolution: Broad Line Velocity Shifts over $1.5\lesssim z\lesssim 7.5$
• Revealing the Accretion Physics of Supermassive Black Holes at Redshift z~7 with Chandra and Infrared Observations
• Black hole feeding and feedback: the physics inside the "subgrid"
• Does the X-ray outflow quasar PDS 456 have a UV outflow at 0.3c?
• EMERGE: Empirical predictions of galaxy merger rates since $z\sim 6$
• The Dependence of C IV Broad Absorption Line Properties on Accompanying Si IV and Al III Absorption: Relating Quasar-Wind Ionization Levels, Kinematics, and Column Densities
• Shaping the X-ray spectrum of galaxy clusters with AGN feedback and turbulence
• Rapid growth of seed black holes during early bulge formation
• Classification of Broad Absorption Line Quasars with a Convolutional Neural Network
• The Extremely Luminous Quasar Survey in the Sloan Digital Sky Survey footprint. III. The South Galactic Cap Sample and the Quasar Luminosity Function at Cosmic Noon
• On the absorption of X-ray bright broad absorption line quasars
• Outflow and hot dust emission in broad absorption line quasars
• Chemical Abundance of z~6 Quasar Broad-Line Regions in the XQR-30 Sample
• The space density of ultra-luminous QSOs at the end of reionization epoch by the QUBRICS Survey and the AGN contribution to the hydrogen ionizing background
• Survey of Extremely High-velocity Outflows in Sloan Digital Sky Survey Quasars
• The Luminosity Function of bright QSOs at z~4 and implications for the cosmic ionizing background
• Ultra-luminous quasars at redshift $z>4.5$ from SkyMapper
• The WISSH quasars project X. Discovery of a multi-component and highly-variable UV ultra-fast outflow in a z=3.6 quasar
• The Farthest Quasar Mini-BAL Outflow from its Central Source: VLT/UVES Observation of SDSSJ0242+0049
• On the origins of C IV absorption profile diversity in broad absorption line quasars
• High-redshift SMBHs can grow from stellar-mass seeds via chaotic accretion
• The black hole and host galaxy growth in an isolated $z\sim 6$ QSO observed with ALMA
• Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). IX. Identification of Two Red Quasars at z > 5.6
• Is the star formation rate in $z\sim 6$ quasars overestimated?
• BALQSO Spectra Explained by Shock Disruption of Galactic Clouds
• Star Formation in Luminous LoBAL Quasars at 2.0<z<2.5

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• Spectral variability studies in Active Galactic Nuclei: Exploring continuum and emission line regions in the age of LSST and JWST
• Fading Light, Fierce Winds: JWST Snapshot of a Sub-Eddington Quasar at Cosmic Dawn
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• A New Member of the Fast and Furious Family: A Relativistic and Time-Variable UV Outflow in a Luminous Quasar
• Unveiling BLR Structure in AGN with High Resolution X-Ray Spectra: An Analytic Approach to Wind Emission Line Profiles
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