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Where are Compton-thick radio galaxies? A hard X-ray view of three candidates

Where are Compton-thick radio galaxies? A hard X-ray view of three candidates
Where are Compton-thick radio galaxies? A hard X-ray view of three candidates
We present a broad-band X-ray spectral analysis of the radio-loud active galactic nuclei NGC 612, 4C 73.08 and 3C 452, exploiting archival data from NuSTAR, XMM–Newton, Swift and INTEGRAL. These Compton-thick candidates are the most absorbed sources among the hard X-ray selected radio galaxies studied in Panessa et al. We find an X-ray absorbing column density in every case below 1.5 × 1024 cm−2, and no evidence for a strong reflection continuum or iron K α line. Therefore, none of these sources is properly Compton-thick. We review other Compton-thick radio galaxies reported in the literature, arguing that we currently lack strong evidences for heavily absorbed radio-loud AGNs.
0035-8711
5684-5693
Ursini, F
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Bassani, L.
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Panessa, F.
ea57d0af-2ad5-4f65-a8f7-b001e70ebe13
Bazzano, A.
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Bird, Antony
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Malizia, A.
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Ubertini, P.
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Ursini, F
3736c39e-a16d-42ec-812a-e5b1c8d9b0b0
Bassani, L.
07e5602c-f97e-4334-a0fa-c2212431a61a
Panessa, F.
ea57d0af-2ad5-4f65-a8f7-b001e70ebe13
Bazzano, A.
8eef0c6e-1a5f-4bcd-a034-9a5c3b29104d
Bird, Antony
045ee141-4720-46fd-a412-5aa848a91b32
Malizia, A.
efa63850-cf26-482c-ae3b-54b0c8fb8a87
Ubertini, P.
7035748e-152c-473e-8766-a2fa3ac49fcb

Ursini, F, Bassani, L., Panessa, F., Bazzano, A., Bird, Antony, Malizia, A. and Ubertini, P. (2017) Where are Compton-thick radio galaxies? A hard X-ray view of three candidates. Monthly Notices of the Royal Astronomical Society, 474 (4), 5684-5693. (doi:10.1093/mnras/stx3159).

Record type: Article

Abstract

We present a broad-band X-ray spectral analysis of the radio-loud active galactic nuclei NGC 612, 4C 73.08 and 3C 452, exploiting archival data from NuSTAR, XMM–Newton, Swift and INTEGRAL. These Compton-thick candidates are the most absorbed sources among the hard X-ray selected radio galaxies studied in Panessa et al. We find an X-ray absorbing column density in every case below 1.5 × 1024 cm−2, and no evidence for a strong reflection continuum or iron K α line. Therefore, none of these sources is properly Compton-thick. We review other Compton-thick radio galaxies reported in the literature, arguing that we currently lack strong evidences for heavily absorbed radio-loud AGNs.

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1712.01300v1 - Accepted Manuscript
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Accepted/In Press date: 4 December 2017
e-pub ahead of print date: 8 December 2017
Additional Information: Author A Bird confirmed Arxiv copy 1712.01300 is AM copy.

Identifiers

Local EPrints ID: 417514
URI: http://eprints.soton.ac.uk/id/eprint/417514
ISSN: 0035-8711
PURE UUID: f4ae5763-634d-43ec-a446-0973dbc2b42a
ORCID for Antony Bird: ORCID iD orcid.org/0000-0002-6888-8937

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Date deposited: 01 Feb 2018 17:30
Last modified: 26 Nov 2021 02:36

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Contributors

Author: F Ursini
Author: L. Bassani
Author: F. Panessa
Author: A. Bazzano
Author: Antony Bird ORCID iD
Author: A. Malizia
Author: P. Ubertini

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