Evidence that 50% of BALQSO Outflows Are Situated at Least 100 pc from the Central Source

Abstract

The most robust way for determining the distance of quasar absorption outflows is the use of troughs from ionic excited states. The column density ratio between the excited and resonance states yields the outflow number density. Combined with a knowledge of the outflow's ionization parameter, a distance from the central source (R) can be determined. Here we report results from two surveys targeting outflows that show troughs from S IV. One survey includes 1091 SDSS and BOSS quasar spectra, and the other includes higher-quality spectra of 13 quasars observed with the Very Large Telescope. Our S IV samples include 38 broad absorption line (BAL) outflows, and four mini-BAL outflows. The S IV is formed in the same physical region of the outflow as the canonical outflow-identifying species C IV. Our results show that S IV absorption is only detected in 25% of C IV BAL outflows. The smaller detection fraction is due to the higher total column density ($N_H$) needed to detect S IV absorption. Since R empirically anticorrelates with $N_H$ the results of these surveys can be extrapolated to C IV quasar outflows with lower $N_H$ as well. We find that at least 50% of quasar outflows are at distances larger than 100 pc from the central source, and at least 12% are at distances larger than 1000 pc. These results have profound implications for the study of the origin and acceleration mechanism of quasar outflows and their effects on the host galaxy.

arXiv comment21 pages, 6 figures, 8 tables. Published, 2018, ApJ, 857, 60. Title typo corrected

References in corpus (67)

• The Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III
• The Sloan Digital Sky Survey Quasar Catalog V. Seventh Data Release
• Dynamics of line-driven disk winds in Active Galactic Nuclei
• A Structure for Quasars
• Quasar Feedback: More Bang for Your Buck
• Dynamics of Line-Driven Disk Winds in Active Galactic Nuclei II: Effects of Disk Radiation
• Kiloparsec-scale outflows are prevalent among luminous AGN: outflows and feedback in the context of the overall AGN population
• The Sloan Digital Sky Survey Quasar Catalog: twelfth data release
• CHIANTI - An atomic database for Emission Lines. Version 8
• A Catalog of Broad Absorption Line Quasars from the Sloan Digital Sky Survey Third Data Release
• Observations of Feedback from Radio-Quiet Quasars - II. Kinematics of Ionized Gas Nebulae
• Atomic Data for Permitted Resonance Lines of Atoms and Ions from H to Si, and S, Ar, Ca and Fe
• Observational evidence of quasar feedback quenching star formation at high redshift
• The case for AGN feedback in galaxy groups
• The Frequency and Radio Properties of Broad Absorption Line Quasars
• Momentum Driving: which physical processes dominate AGN feedback?
• Evidence for ultra-fast outflows in radio-quiet AGNs: II - detailed photo-ionization modeling of Fe K-shell absorption lines
• Feedback from central black holes in elliptical galaxies. III: models with both radiative and mechanical feedback
• Energetic galaxy-wide outflows in high-redshift ultra-luminous infrared galaxies hosting AGN activity
• Quasar Outflow Contribution to AGN Feedback: Observations of QSO SDSS J0838+2955
• The Quasar Outflow Contribution to AGN Feedback: VLT Measurements of SDSS J0318-0600
• Observations of Feedback from Radio-Quiet Quasars: I. Extents and Morphologies of Ionized Gas Nebulae
• The Intrinsic Fraction of Broad Absorption Line Quasars
• On the Fraction of Quasars with Outflows
• Quasar Outflows and AGN Feedback in the Far UV: HST/COS Observations of QSO HE0238-1904
• Simultaneous X-ray and UV spectroscopy of the Seyfert 1 galaxy NGC 5548.II. Physical conditions in the X-ray absorber
• 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
• High-Resolution Keck Spectra of the Associated Absorption Lines in 3C 191
• Major contributor to AGN feedback: VLT X-shooter observations of SIV BAL QSO outflows
• 2MASS Reveals a Large Intrinsic Fraction of BALQSOs
• Variability in Quasar Broad Absorption Line Outflows I. Trends in the Short-Term versus Long-Term Data
• HST Observations of the Broad Absorption Line Quasar PG 0946+301
• HST STIS Observations of PG 0946+301: the Highest Quality UV Spectrum of a BALQSO
• Line-driven Disk Winds in Active Galactic Nuclei: The Critical Importance of Ionization and Radiative Transfer
• A Physical Model of FeLoBALs: Implications for Quasar Feedback
• X-ray/UV Campaign on the Mrk 279 AGN Outflow: Constraining Inhomogeneous Absorber Models
• Variability in quasar broad absorption line outflows II. Multi-epoch monitoring of SiIV and CIV BAL variability
• The Ionized Gas and Nuclear Environment in NGC 3783 V. Variability and Modeling of the Intrinsic Ultraviolet Absorption
• IFU observations of luminous type II AGN - I. Evidence for ubiquitous winds
• Reverberation Mapping of the Seyfert 1 Galaxy NGC 7469
• 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
• Anatomy of the AGN in NGC 5548: II. The Spatial, Temporal and Physical Nature of the Outflow from HST/COS Observations
• Measuring Column Densities in Quasar Outflows: VLT Observations of QSO 2359-1241
• Dynamics of Warm-Absorbing Gas in Seyfert Galaxies: NGC 5548
• Consequences of Mechanical and Radiative Feedback from Black Holes in Disc Galaxy Mergers
• A 10 kpc Scale Seyfert Galaxy Outflow: HST/COS Observations of IRAS F22456-5125
• Feeding and feedback in the active nucleus of Mrk 1157 probed with Gemini Near-Infrared Integral-Field Spectrograph
• Testing Quasar Unification: Radiative Transfer in Clumpy Winds
• Similarity of ionized gas nebulae around unobscured and obscured quasars
• Distance to Multiple Kinematic Components of Quasar Outflows: VLT Observations of QSO 2359-1241 and SDSS J0318-0600
• BAL phosphorus abundance and evidence for immense ionic column densities in quasar outflows: VLT X-Shooter observations of quasar SDSS J1512+1119
• Variation of ionizing continuum: the main driver of Broad Absorption Line Variability
• Tracing the Outflow of a z=0.334 FeLoBAL: New Constraints from Low-Ionization Absorbers in FBQS J1151+3822
• CIV Broad Absorption Line Acceleration in Sloan Digital Sky Survey Quasars
• The Intrinsic Fractions and Radio Properties of Low Ionization Broad Absorption Line Quasars
• Multi-Epoch Observations of Extremely High-Velocity Emergent Broad Absorption
• Contrasting the UV and X-ray O VI Column Density Inferred for the Outflow in NGC 5548
• A Variable PV Broad Absorption Line and Quasar Outflow Energetics
• Integral Field Spectroscopy of AGN Absorption Outflows: Mrk 509 and IRAS F04250-5718
• A compact, metal-rich, kpc-scale outflow in FBQS J0209-0438: Detailed diagnostics from HST/COS extreme UV observations
• Outflow in Overlooked Luminous Quasar: Subaru Observations of AKARI J1757+5907
• BAL Outflow Contribution to AGN Feedback: Frequency of S iv Outflows in the SDSS
• A Moderate Cooling Flow Phase at Galaxy Formation
• Extreme Variability in a Broad Absorption Line Quasar
• Multiwavelength campaign on Mrk 509 XIV. Chandra HETGS spectra

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• 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?
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• HST/COS Observations of Quasar Outflows in the 500 -- 1050 Å Rest Frame: II The Most Energetic Quasar Outflow Measured to Date
• Connecting radio emission to AGN wind properties with Broad Absorption Line Quasars
• HST/COS Observations of Quasar Outflows in the 500-1050 Å Rest Frame: V. Richness of Physical Diagnostics and Ionization Potential-dependent Velocity Shift in PKS J0352-0711
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• Deceleration of CIV and SiIV broad absorption lines in X-ray bright quasar SDSS-J092345+512710
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• HST/COS Observations of Quasar Outflows in the 500 -- 1050 Å Rest Frame: VI Wide, Energetic Outflows in SDSS J0755+2306
• Narrow, Intrinsic CIV Absorption in Quasars as it Relates to Outflows, Orientation, and Radio Properties
• Down-the-barrel observations of a multiphase quasar outflow at high redshift: VLT/X-shooter spectroscopy of the proximate molecular absorber at z=2.631 towards SDSS J001514+184212
• Search for intrinsic NALs in BAL/mini-BAL quasar spectra
• The SDSS-V Black Hole Mapper Reverberation Mapping Project: CIV BAL Acceleration in the Quasar SBS 1408+544
• VLT/UVES Observation of the Outflow in Quasar SDSS J1439-0106
• High Mass Flow Rate in a BAL Outflow of Quasar SDSS J1130+0411
• [OIII] emission in z=2 quasars with and without Broad Absorption Lines
• Time variability of ultra-fast BAL outflows using SALT: C IV equivalent width analysis
• Coordinated time variability of multi-phase ultra-fast outflows in J132216.25+052446.3
• Radiation-pressure Waves and Multiphase Quasar Outflows
• Multi-wavelength campaign on NGC 7469 V. Analysis of the HST/COS observations: Super solar metallicity, distance, and trough variation models
• On The Fine Tuning and Physical Origin of Line-Locked Absorption Systems in Active Galaxies
• Multi-epoch spectroscopy of Mg II broad absorption line transitions
• HST/COS Observations of Quasar Outflows in the 500-1050 Angstrom Rest Frame: VII. Distances and Energetics for 11 Outflows in Five Quasars
• BALQSO Spectra Explained by Shock Disruption of Galactic Clouds
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• Physical characterization of the FeLoBAL outflow in SDSS J0932+0840: Analysis of VLT/UVES observations
• DESI survey of S IV absorption outflows in quasars: Contribution to AGN feedback and comparison with [O III] emission outflows
• Discovery of the Asymmetric Effect in the Response of Photoionization Gas
• Transient LoBALs at high velocities: A Case of Extreme Broad Absorption Line Variability in J115636.82+085628.9
• On the signature of black holes on the quenched stellar mass function
• A New Member of the Fast and Furious Family: A Relativistic and Time-Variable UV Outflow in a Luminous Quasar
• Evidence for the connection between star formation rate and evolutionary phases of quasars
• A quasar shedding its dust cocoon at redshift 2
• Metal-strong Inflows at the Outer-galactic-scale of a Quasar
• Dissecting the multiple-component outflow in NGC 5548 with absorption-line Variability