Anatomy of the AGN in NGC 5548: II. The Spatial, Temporal and Physical Nature of the Outflow from HST/COS Observations

Abstract

(Abridged) Our deep multiwavelength campaign on NGC 5548 revealed an unusually strong X-ray obscuration. The resulting dramatic decrease in incident ionizing flux allowed us to construct a comprehensive physical, spatial and temporal picture for the long-studied AGN wind in this object. Here we analyze the UV spectra of the outflow acquired during the campaign as well as from four previous epochs. We find that a simple model based on a fixed total column-density absorber, reacting to changes in ionizing illumination, matches the very different ionization states seen in five spectroscopic epochs spanning 16 years. Absorption troughs from C III* appeared for the first time during our campaign. From these troughs, we infer that the main outflow component is situated at 3.5+-1 pc from the central source. Three other components are situated between 5-70 pc and two are further than 100 pc. The wealth of observational constraints and the disparate relationship of the observed X-ray and UV flux between different epochs make our physical model a leading contender for interpreting trough variability data of quasar outflows.

arXiv commentSubmitted to A&A, 13 pages and 7 figures, plus 27 pages of 3 appendix figures

References in corpus (32)

• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• Quasar Feedback: More Bang for Your Buck
• The Cosmic Origins Spectrograph
• Intrinsic Absorption Lines in Seyfert 1 Galaxies. I. Ultraviolet Spectra from the Hubble Space Telescope
• Modeling reverberation mapping data II: dynamical modeling of the Lick AGN Monitoring Project 2008 dataset
• Momentum Driving: which physical processes dominate AGN feedback?
• A fast and long-lived outflow from the supermassive black hole in NGC 5548
• Feedback from central black holes in elliptical galaxies. III: models with both radiative and mechanical feedback
• 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
• Major contributor to AGN feedback: VLT X-shooter observations of SIV BAL QSO outflows
• The Size of the Narrow-Line Emitting Region in the Seyfert 1 Galaxy NGC 5548 from Emission-Line Variability
• HST STIS Observations of PG 0946+301: the Highest Quality UV Spectrum of a BALQSO
• A Physical Model of FeLoBALs: Implications for Quasar Feedback
• What Determines the Depth of BALs? Keck HIRES Observations of BALQSO 1603+300
• 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
• X-Ray/Ultraviolet Observing Campaign of the Markarian 279 Active Galactic Nucleus Outflow: a close look at the absorbing/emitting gas with Chandra-LETGS
• Multiwavelength campaign on Mrk 509 VIII. Location of the X-ray absorber
• Measuring Column Densities in Quasar Outflows: VLT Observations of QSO 2359-1241
• The Ionized Gas and Nuclear Environment in NGC 3783 II. Averaged HST/STIS and FUSE Spectra
• Chemical Abundances in AGN Environment: X-Ray/UV Campaign on the MRK 279 Outflow
• A 10 kpc Scale Seyfert Galaxy Outflow: HST/COS Observations of IRAS F22456-5125
• On the Column Density of AGN Outflows: the Case of NGC 5548
• The AGN Outflow in the HDFS Target QSO J2233-606 from a High-Resolution VLT/UVES Spectrum
• BAL phosphorus abundance and evidence for immense ionic column densities in quasar outflows: VLT X-Shooter observations of quasar SDSS J1512+1119
• Simultaneous UV and X-ray Spectroscopy of the Seyfert 1 Galaxy NGC 5548. I. Physical Conditions in the UV Absorbers
• Mass Outflow in the Seyfert 1 Galaxy NGC 5548
• Evolution of chemical abundances in Seyfert galaxies
• Correlation of Black Hole and Bulge Masses: Driven by Energy but Correlated with Momentum

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• Anatomy of the AGN in NGC 5548: III. The high-energy view with NuSTAR and INTEGRAL
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