The soft X-ray spectrum of the luminous narrow line Seyfert galaxy PG1211+143 - evidence for a second high velocity outflow component

Abstract

An XMM-Newton observation of the luminous Seyfert galaxy PG1211+143 in 2001 revealed the first clear evidence for a highly ionised high speed wind (in a non-BAL AGN), with a velocity of v~0.09c based on the identification of blue-shifted absorption lines in both EPIC and RGS spectra. A subsequent analysis of EPIC spectra, including additional absorption lines, led to an upward revision of the wind speed to ~0.14c, while broad band modelling indicated the need for a second, partial covering absorber to account for continuum curvature and spectral variability. We show here, in a new analysis of the XMM-Newton RGS data, that this additional absorber is detected in the soft X-ray spectra, with the higher spectral resolution providing a much improved velocity constraint, with v~0.07c. Similar variability of the 0.07c and 0.14c outflow components suggest they are physically linked, and we speculate that occurs by the fast (primary) wind impacting on small clumps of higher density, slow moving matter close to the disc. We show that strong, velocity broadened soft X-ray emission features, located at the redshift of PG1211+143, indicate the extended scale of the ionised outflow.

7 pages, 4 figures, submitted to MNRAS

References in corpus (9)

• Unification of X-ray winds in Seyfert galaxies: from ultra-fast outflows to warm absorbers
• The Suzaku view of highly-ionised outflows in AGN: I - Statistical detection and global absorber properties
• On why the Iron K-shell absorption in AGN is not a signature of the local Warm/Hot Intergalactic Medium
• The Black Hole Mass-Bulge Luminosity Relationship for Active Galactic Nuclei from Reverberation Mapping and Hubble Space Telescope Imaging
• The shocked outflow in NGC 4051 - momentum-driven feedback, UFO's and warm absorbers
• An Examination of the Spectral Variability in NGC 1365 with Suzaku
• Is the X-ray spectrum of the narrow emission line QSO PG1211+143 defined by its energetic outflow?
• The Milky Way halo as a QSO absorption-line system. New results from an HST/STIS absorption-line catalogue of Galactic high-velocity clouds
• A Census of Quasar-Intrinsic Absorption in the Hubble Space Telescope Archive: Systems from High Resolution Echelle Spectra

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• X-ray high-resolution spectroscopy reveals feedback in a Seyfert galaxy from an ultra fast wind with complex ionization and velocity structure
• Discovery of Broad Soft X-ray Absorption Lines from the Quasar Wind in PDS 456
• The variable, fast soft X-ray wind in PG 1211+143
• Imprints of a high velocity wind on the soft x-ray spectrum of PG 1211+143
• The Ultra-Fast Outflow of the Quasar PG 1211+143 as Viewed by Time-Averaged Chandra Grating Spectroscopy
• Detection of a second high velocity component in the highly ionized wind from PG 1211+143
• Quantifying AGN-Driven Metal-Enhanced Outflows in Chemodynamical Simulations
• A Radio Polarimetric Study to Disentangle AGN Activity and Star-Formation in Seyfert Galaxies
• The reverberation signatures of rotating disc winds in active galactic nuclei
• Testing relativistic reflection and resolving outflows in PG 1211+143 with XMM-Newton and NuSTAR
• A systematic study of the ultra-fast outflow responses to luminosity variations in active galactic nuclei
• A Search for H I Lyman $\alpha$ Counterparts to Ultra-Fast X-ray Outflows
• Modelling the variable broad-band optical/UV/X-ray spectrum of PG1211+143: Implications for the ionized outflow