Blueshifted absorption lines from X-ray reflection in IRAS 13224-3809

Abstract

We explore a disc origin for the highly-blueshifted, variable absorption lines seen in the X-ray spectrum of the Narrow Line Seyfert 1 galaxy IRAS13224-3809. The blueshift corresponds to a velocity of about 0.25c. Such features in other Active Galactic Nuclei are often interpreted as UltraFast Outflows (UFOs). The velocity is of course present in the orbital motions of the inner disk. The absorption lines in IRAS13224-3809 are best seen when the flux is low and the reflection component of the disk is strong relative to the power-law continuum. The spectra are consistent with a model in which the reflection component passes through a thin, highly-ionized absorbing layer at the surface of the inner disc, the blue-shifted side of which dominates the flux due to relativistic aberration (the disc inclination is about 70 deg). No fast outflow need occur beyond the disc.

arXiv comment6 pages, 5 figures, accepted for publication in MNRAS

References in corpus (20)

• Observational Evidence of AGN Feedback
• Evidence for ultra-fast outflows in radio-quiet AGNs: I - detection and statistical incidence of Fe K-shell absorption lines
• A high velocity ionised outflow and XUV photosphere in the narrow emission line quasar PG1211+143
• Irradiation of an Accretion Disc by a Jet: General Properties and Implications for Spin Measurements of Black Holes
• Unification of X-ray winds in Seyfert galaxies: from ultra-fast outflows to warm absorbers
• Resolved atomic lines reveal outflows in two ultraluminous X-ray sources
• A Compton-thick Wind in the High Luminosity Quasar, PDS 456
• High-Density Effects in X-ray Reflection Models from Accretion Disks
• X-ray iron line reverberation from black hole accretion disks
• The response of relativistic outflowing gas to the inner accretion disk of a black hole
• Evidence for a Variable Ultrafast Outflow in the Newly Discovered Ultraluminous Pulsar NGC 300 ULX-1
• The 1.5 Ms Observing Campaign on IRAS 13224-3809: X-ray Spectral Analysis I
• An Iron K Component to the Ultrafast Outflow in NGC 1313 X-1
• Ultrafast outflows disappear in high radiation fields
• Revealing the ultra-fast outflow in IRAS 13224-3809 through spectral variability
• Detection of a second high velocity component in the highly ionized wind from PG 1211+143
• How the effects of resonant absorption on black hole reflection spectra can mimic high-velocity outflows
• The origin of blue-shifted absorption features in the X-ray spectrum of PG 1211+143: Outflow or disc?
• Modelling X-ray RMS spectra I: intrinsically variable AGN
• Cosmological lensing ratios with DES Y1, SPT and Planck

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