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The shape of Fe K α line emitted from relativistic accretion disc around AGN black holes

The shape of Fe K α line emitted from relativistic accretion disc around AGN black holes
The shape of Fe K α line emitted from relativistic accretion disc around AGN black holes

The relativistically broadened Fe Kα line, originating from the accretion disc in a vicinity of a super massive black hole, is observed in only less than 50% of type 1 Active Galactic Nuclei (AGN). In this study, we investigate could this lack of detections be explained by the effects of certain parameters of the accretion disc and black hole, such as the inclination, the inner and outer radius of disc and emissivity index. In order to determine how these parameters affect the Fe Kα line shape, we simulated about 60,000 Fe Kα line profiles emitted from the relativistic disc. Based on simulated line profiles, we conclude that the lack of the Fe Kα line detection in type 1 AGN could be caused by the specific emitting disc parameters, but also by the limits in the spectral resolution and sensitivity of the X-ray detectors.

Active galactic nuclei, Fe K α line, simulation
0217-751X
Milošević, Milan
d0d3aeca-1dee-47f5-8354-0078530815a2
Pursiainen, Miika A.
bc6f0ca1-8318-4c4a-8123-27cb6a88a1c9
Jovanović, Predrag
5667e3c7-0c21-493e-90bd-3f999670439b
Popović, Luka C.
1584383c-2824-4a7c-b666-269980b7f892
Milošević, Milan
d0d3aeca-1dee-47f5-8354-0078530815a2
Pursiainen, Miika A.
bc6f0ca1-8318-4c4a-8123-27cb6a88a1c9
Jovanović, Predrag
5667e3c7-0c21-493e-90bd-3f999670439b
Popović, Luka C.
1584383c-2824-4a7c-b666-269980b7f892

Milošević, Milan, Pursiainen, Miika A., Jovanović, Predrag and Popović, Luka C. (2018) The shape of Fe K α line emitted from relativistic accretion disc around AGN black holes. International Journal of Modern Physics A, 33 (34), [1845016]. (doi:10.1142/S0217751X18450161).

Record type: Article

Abstract

The relativistically broadened Fe Kα line, originating from the accretion disc in a vicinity of a super massive black hole, is observed in only less than 50% of type 1 Active Galactic Nuclei (AGN). In this study, we investigate could this lack of detections be explained by the effects of certain parameters of the accretion disc and black hole, such as the inclination, the inner and outer radius of disc and emissivity index. In order to determine how these parameters affect the Fe Kα line shape, we simulated about 60,000 Fe Kα line profiles emitted from the relativistic disc. Based on simulated line profiles, we conclude that the lack of the Fe Kα line detection in type 1 AGN could be caused by the specific emitting disc parameters, but also by the limits in the spectral resolution and sensitivity of the X-ray detectors.

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More information

Accepted/In Press date: 22 November 2018
Published date: 12 December 2018
Keywords: Active galactic nuclei, Fe K α line, simulation

Identifiers

Local EPrints ID: 429236
URI: http://eprints.soton.ac.uk/id/eprint/429236
ISSN: 0217-751X
PURE UUID: a799077d-fae5-4f6d-9bf0-99d6cbbff287

Catalogue record

Date deposited: 22 Mar 2019 17:30
Last modified: 07 Oct 2020 00:51

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