A Catalog of High-Velocity CIV Mini-BALs in the VLT-UVES and Keck-HIRES Archives

Abstract

We present a catalog of high-velocity CIV $\lambda$ 1548,1551 mini-Broad Absorption Lines (mini-BALs) in the archives of the VLT-UVES and Keck-HIRES spectrographs. We identify high-velocity CIV mini-BALs based on smooth rounded BAL-like profiles with velocity blueshifts $<$ $-$4000 km/s and widths in the range 70 $\lesssim$ FWHM(1548) $\lesssim$ 2000 km/s (for $\lambda$1548 alone). We find 105 mini-BALs in 44 quasars from a total sample of 638 quasars. The fraction of quasars with at least one mini-BAL meeting our criteria is roughly $\sim 9$% after correcting for incomplete velocity coverage. However, the numbers of systems rise sharply at lower velocities and narrower FWHMs, suggesting that many outflow lines are missed by our study. All of the systems are highly ionized based on the strong presence of NV and OVI and/or the absence of SiII and CII when within the wavelength coverage. Two of the mini-BAL systems in our catalog, plus three others at smaller velocity shifts, have PV $\lambda$1118,1128 absorption indicating highly saturated CIV absorption and total hydrogen column densities $\gtrsim 10^{22}$ cm${}^{-3}$. Most of the mini-BALs are confirmed to have optical depths $\gtrsim$1 with partial covering of the quasar continuum source. The covering fractions are as small as 0.06 in CIV and 0.03 in SiIV , corresponding to outflow absorbing structures $<0.002$ pc across. When multiple lines are measured, the lines of less abundant ions tend to have narrower profiles and smaller covering fractions indicative of inhomogeneous absorbers where higher column densities occur in smaller clumps. This picture might extend to BAL outflows if the broader and generally deeper BALs form in either the largest clumps or collections of many mini-BAL-like clumps that blend together in observed quasar spectra.

arXiv comment12 figures, 3 tables

References in corpus (77)

• Energy input from quasars regulates the growth and activity of black holes and their host galaxies
• SDSS-III: Massive Spectroscopic Surveys of the Distant Universe, the Milky Way Galaxy, and Extra-Solar Planetary Systems
• The Baryon Oscillation Spectroscopic Survey of SDSS-III
• A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: I. Galaxy Mergers & Quasar Activity
• Simulating galaxy formation with black hole driven thermal and kinetic feedback
• A Unified Model for the Evolution of Galaxies and Quasars
• The Sloan Digital Sky Survey Quasar Catalog V. Seventh Data Release
• Massive Molecular Outflows and Evidence for AGN Feedback from CO Observations
• Black Holes, Galaxy Formation, and the M_BH-sigma Relation
• Quasar Feedback: More Bang for Your Buck
• The Sloan Digital Sky Survey Quasar Catalog: twelfth data release
• A Catalog of Broad Absorption Line Quasars from the Sloan Digital Sky Survey Third Data Release
• A Catalog of Broad Absorption Line Quasars in Sloan Digital Sky Survey Data Release 5
• Unusual Broad Absorption Line Quasars from the Sloan Digital Sky Survey
• The Multiphase Structure and Power Sources of Galactic Winds in Major Mergers
• A Description of Quasar Variability Measured Using Repeated SDSS and POSS Imaging
• Quasar Feedback: the Missing Link in Structure Formation
• The Frequency and Radio Properties of Broad Absorption Line Quasars
• Momentum Driving: which physical processes dominate AGN feedback?
• Continuum and Emission-Line Properties of Broad Absorption Line Quasars
• The Quasar Outflow Contribution to AGN Feedback: VLT Measurements of SDSS J0318-0600
• The Intrinsic Fraction of Broad Absorption Line Quasars
• On the Fraction of Quasars with Outflows
• Quasar-Mode Feedback in Nearby Type 1 Quasars: Ubiquitous Kiloparsec-Scale Outflows and Correlations with Black Hole Properties
• Broad Absorption Line Variability on Multi-Year Timescales in a Large Quasar Sample
• Keck Hires Observations of the QSO First J104459.6+365605: Evidence for a Large Scale Outflow
• Major contributor to AGN feedback: VLT X-shooter observations of SIV BAL QSO outflows
• High-Resolution Keck Spectra of the Associated Absorption Lines in 3C 191
• A High-Velocity Narrow Absorption Line Outflow in the Quasar J212329.46-005052.9
• A Census of Intrinsic Narrow Absorption Lines in the Spectra of Quasars at z=2-4
• Broad P V Absorption in the BALQSO, PG 1254+047: Column Densities, Ionizations and Metal Abundances in BAL Winds
• Quasars Probing Quasars III: New Clues to Feedback, Quenching, and the Physics of Massive Galaxy Formation
• Galaxy-Scale Outflows Driven by Active Galactic Nuclei
• Narrow associated QSO absorbers: clustering, outflows and the line-of-sight proximity effect
• Tombaugh 2: The First Open Cluster with a Significant Abundance Spread or Embedded in a Cold Stellar Stream?
• X-ray/UV Campaign on the Mrk 279 AGN Outflow: Constraining Inhomogeneous Absorber Models
• The UVES Spectral Quasar Absorption Database (SQUAD) Data Release 1: The first 10 million seconds
• The Ionized Gas and Nuclear Environment in NGC 3783 V. Variability and Modeling of the Intrinsic Ultraviolet Absorption
• Implications of Dramatic Broad Absorption Line Variability in the Quasar FBQS J1408+3054
• Extreme-Velocity Quasar Outflows and the Role of X-ray Shielding
• Emergence of a Broad-Absorption-Line Outflow in the Narrow-line Seyfert 1 Galaxy WPVS 007
• Measuring Column Densities in Quasar Outflows: VLT Observations of QSO 2359-1241
• On the Origin of Intrinsic Narrow Absorption Lines in z<1 QSOs
• The First Data Release of the KODIAQ Survey
• The Quasar-frame Velocity Distribution of Narrow CIV Absorbers
• On the Column Density of AGN Outflows: the Case of NGC 5548
• Testing Quasar Unification: Radiative Transfer in Clumpy Winds
• The Intrinsic Absorber in QSO 2359-1241: Keck and HST Observations
• The SDSS-DR5 Survey for Proximate Damped Lya Systems
• Results of Monitoring the Dramatically Variable C IV Mini-BAL System in the Quasar HS 1603+3820
• On the structure and energetics of quasar broad absorption-line outflows
• Time-Variable Complex Metal Absorption Lines in the Quasar HS1603+3820
• Chemical abundances in quasar host galaxies and environments from narrow absorption line systems
• 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
• The Keck+Magellan Survey for Lyman Limit Absorption III: Sample Definition and Column Density Measurements
• Acceleration and Substructure Constraints in a Quasar Outflow
• Line-driven radiative outflows in luminous quasars
• The chemistry of the most metal-rich damped Lyman $\alpha$ systems at z$\sim 2$ II. Context with the Local Group
• The z=0.54 LoBAL Quasar SDSS J085053.12+445122.5: I. Spectral Synthesis Analysis Reveals a Massive Outflow
• Multi-Epoch Observations of Extremely High-Velocity Emergent Broad Absorption
• Classification of Broad Absorption Line Quasars with a Convolutional Neural Network
• A Variable PV Broad Absorption Line and Quasar Outflow Energetics
• Monitoring the Variability of Intrinsic Absorption Lines in Quasar Spectra
• Short-term optical variability of high-redshift QSO's
• High Velocity Outflows in Narrow Absorption Line Quasars
• Discovery of a Remarkably Powerful Broad Absorption Line Quasar Outflow in SDSS J135246.37+423923.5
• Discovery of the Transition of a Mini-Broad Absorption Line into Broad Absorption in the SDSS Quasar J115122.14+020426.3
• HST and Ground-Based Spectroscopy of Quasar Outflows: From Mini-BALs to BALs
• Narrow absorption lines with two observations of Sloan Digital Sky Survey
• Metallicity and Far-Infrared Luminosity of High Redshift Quasars
• The Gaseous Environments of Quasars: Associate Absorption Lines with Density and Distance Constraints
• On the Emergence of Thousands of Absorption Lines in the Quasar PG1411+442: A Clumpy High-Column Density Outflow from the Broad Emission-Line Region?
• The Origins of a Rich Absorption Line Complex in a Quasar at Redshift 3.45
• Quasars with PV broad absorption in BOSS data release 9
• A Spectropolarimetric Test of the Structure of the Intrinsic Absorbers in the Quasar HS1603+3820
• Nature and Origins of Rich Complexes of C IV Associated Absorption Lines
• Optical Variability Properties of Mini-BAL and NAL Quasars

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