Blueshifted absorption lines from X-ray reflection in IRAS 13224−3809
<jats:title>ABSTRACT</jats:title> <jats:p>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...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Oxford University Press (OUP)
2021
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| Online Access: | https://hdl.handle.net/1721.1/132447 |
| _version_ | 1826199224750964736 |
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| author | Fabian, AC Reynolds, CS Jiang, J Pinto, C Gallo, LC Parker, ML Lasenby, AN Alston, WN Buisson, DJK Cackett, EM De Marco, B Garcia, J Kara, E Kosec, P Middleton, MJ Miller, JM Miniutti, G Walton, DJ Wilkins, DR Young, AJ |
| author_facet | Fabian, AC Reynolds, CS Jiang, J Pinto, C Gallo, LC Parker, ML Lasenby, AN Alston, WN Buisson, DJK Cackett, EM De Marco, B Garcia, J Kara, E Kosec, P Middleton, MJ Miller, JM Miniutti, G Walton, DJ Wilkins, DR Young, AJ |
| author_sort | Fabian, AC |
| collection | MIT |
| description | <jats:title>ABSTRACT</jats:title>
<jats:p>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.</jats:p> |
| first_indexed | 2024-09-23T11:16:43Z |
| format | Article |
| id | mit-1721.1/132447 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:16:43Z |
| publishDate | 2021 |
| publisher | Oxford University Press (OUP) |
| record_format | dspace |
| spelling | mit-1721.1/1324472021-09-21T03:43:38Z Blueshifted absorption lines from X-ray reflection in IRAS 13224−3809 Fabian, AC Reynolds, CS Jiang, J Pinto, C Gallo, LC Parker, ML Lasenby, AN Alston, WN Buisson, DJK Cackett, EM De Marco, B Garcia, J Kara, E Kosec, P Middleton, MJ Miller, JM Miniutti, G Walton, DJ Wilkins, DR Young, AJ <jats:title>ABSTRACT</jats:title> <jats:p>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.</jats:p> 2021-09-20T18:22:27Z 2021-09-20T18:22:27Z 2020-10-30T16:34:57Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/132447 en 10.1093/mnras/staa482 Monthly Notices of the Royal Astronomical Society Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Oxford University Press (OUP) arXiv |
| spellingShingle | Fabian, AC Reynolds, CS Jiang, J Pinto, C Gallo, LC Parker, ML Lasenby, AN Alston, WN Buisson, DJK Cackett, EM De Marco, B Garcia, J Kara, E Kosec, P Middleton, MJ Miller, JM Miniutti, G Walton, DJ Wilkins, DR Young, AJ Blueshifted absorption lines from X-ray reflection in IRAS 13224−3809 |
| title | Blueshifted absorption lines from X-ray reflection in IRAS 13224−3809 |
| title_full | Blueshifted absorption lines from X-ray reflection in IRAS 13224−3809 |
| title_fullStr | Blueshifted absorption lines from X-ray reflection in IRAS 13224−3809 |
| title_full_unstemmed | Blueshifted absorption lines from X-ray reflection in IRAS 13224−3809 |
| title_short | Blueshifted absorption lines from X-ray reflection in IRAS 13224−3809 |
| title_sort | blueshifted absorption lines from x ray reflection in iras 13224 3809 |
| url | https://hdl.handle.net/1721.1/132447 |
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