Blueshifted absorption lines from X-ray reflection in IRAS 13224-3809
Date Issued
2020
Author(s)
Fabian, A. C.
•
Reynolds, C. S.
•
Jiang, J.
•
•
Gallo, L. C.
•
Parker, M. L.
•
Lasenby, A. N.
•
Alston, W. N.
•
Buisson, D. J. K.
•
Cackett, E. M.
•
De Marco, B.
•
Garcia, J.
•
Kara, E.
•
Kosec, P.
•
Middleton, M. J.
•
Miller, J. M.
•
Miniutti, G.
•
Walton, D. J.
•
Wilkins, D. R.
•
Young, A. J.
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 IRAS 13224-3809. The blueshift corresponds to a velocity of ∼0.25c. Such features in other active galactic nuclei are often interpreted as ultrafast outflows. The velocity is of course present in the orbital motions of the inner disc. The absorption lines in IRAS 13224-3809 are best seen when the flux is low and the reflection component of the disc 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 blueshifted side of which dominates the flux due to relativistic aberration (the disc inclination is about 70°). No fast outflow need occurs beyond the disc.
Volume
493
Issue
2
Start page
2518
Issn Identifier
0035-8711
Ads BibCode
2020MNRAS.493.2518F
Rights
open.access
File(s)![Thumbnail Image]()
![Thumbnail Image]()
Loading...
Name
Fabian_2020_bluelines.pdf
Description
PDF Editoriale
Size
1.04 MB
Format
Adobe PDF
Checksum (MD5)
051ba2e1d2619cb18ea4579ea5848072
Loading...
Name
Fabian_2020_bluelinesOA.pdf
Description
Open Access arXiv
Size
891.23 KB
Format
Adobe PDF
Checksum (MD5)
81f5f14b166ab476e14936725217f479