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The nature of the ASCA/INTEGRAL source AX J183039-1002: a new Compton-thick AGN?

The nature of the ASCA/INTEGRAL source AX J183039-1002: a new Compton-thick AGN?
The nature of the ASCA/INTEGRAL source AX J183039-1002: a new Compton-thick AGN?
We report on the identification of the X/soft ?-ray source AX J183039–1002 detected with ASCA and INTEGRAL/IBIS. The source, which has an observed 20–100 keV flux of ?8.6 × 10?11 erg cm?2 s?1 , is inside a diffuse radio supernova remnant (SNR) and is spatially coincident with a compact radio source. We analysed archival Chandra and XMM–Newton observations in order to identify the ASCA/INTEGRAL source. A point-like Chandra X-ray object was found to be positionally coincident with the compact radio source and within the error circle of the ASCA and INTEGRAL sources. Although the association of a compact radio/X-ray source with a radio SNR could be indicative of a pulsar wind nebula (PWN), the XMM–Newton X-ray spectrum is compatible with an absorbed, Seyfert-2 like active galactic nucleus, since it provides evidence for an iron emission line of ?1 keV equivalent width; furthermore the X-ray source spectrum is similar to that of other Compton thick AGN where the 2 keV data are associated to a warm reflector and the 10 keV one to a cold reflector.

x-rays: general, x-rays: individual: AX J183039?1002
1745-3933
L1-L5
Bassani, L.
07e5602c-f97e-4334-a0fa-c2212431a61a
Landi, R.
b8243478-d7a1-4774-8a66-4158a65a33d3
Campana, R.
4237fc4e-43da-439e-adf8-35cd2f4f14f7
McBride, V.A.
a4608811-5a3f-4218-ada0-28f57ec2a0fd
Dean, A.J.
2f9093f2-855c-4769-b1aa-6dd621b5dcf1
Bird, A.J.
045ee141-4720-46fd-a412-5aa848a91b32
Green, D.A.
7c42d94c-3f6b-4d91-98ad-8c9ced2c3de3
Ubertini, P.
7035748e-152c-473e-8766-a2fa3ac49fcb
De Rosa, A.
b2a68e71-5c23-4649-94f0-1d8ffd40bb77
Bassani, L.
07e5602c-f97e-4334-a0fa-c2212431a61a
Landi, R.
b8243478-d7a1-4774-8a66-4158a65a33d3
Campana, R.
4237fc4e-43da-439e-adf8-35cd2f4f14f7
McBride, V.A.
a4608811-5a3f-4218-ada0-28f57ec2a0fd
Dean, A.J.
2f9093f2-855c-4769-b1aa-6dd621b5dcf1
Bird, A.J.
045ee141-4720-46fd-a412-5aa848a91b32
Green, D.A.
7c42d94c-3f6b-4d91-98ad-8c9ced2c3de3
Ubertini, P.
7035748e-152c-473e-8766-a2fa3ac49fcb
De Rosa, A.
b2a68e71-5c23-4649-94f0-1d8ffd40bb77

Bassani, L., Landi, R., Campana, R., McBride, V.A., Dean, A.J., Bird, A.J., Green, D.A., Ubertini, P. and De Rosa, A. (2009) The nature of the ASCA/INTEGRAL source AX J183039-1002: a new Compton-thick AGN? Monthly Notices of the Royal Astronomical Society: Letters, 395 (1), L1-L5. (doi:10.1111/j.1745-3933.2009.00626.x).

Record type: Article

Abstract

We report on the identification of the X/soft ?-ray source AX J183039–1002 detected with ASCA and INTEGRAL/IBIS. The source, which has an observed 20–100 keV flux of ?8.6 × 10?11 erg cm?2 s?1 , is inside a diffuse radio supernova remnant (SNR) and is spatially coincident with a compact radio source. We analysed archival Chandra and XMM–Newton observations in order to identify the ASCA/INTEGRAL source. A point-like Chandra X-ray object was found to be positionally coincident with the compact radio source and within the error circle of the ASCA and INTEGRAL sources. Although the association of a compact radio/X-ray source with a radio SNR could be indicative of a pulsar wind nebula (PWN), the XMM–Newton X-ray spectrum is compatible with an absorbed, Seyfert-2 like active galactic nucleus, since it provides evidence for an iron emission line of ?1 keV equivalent width; furthermore the X-ray source spectrum is similar to that of other Compton thick AGN where the 2 keV data are associated to a warm reflector and the 10 keV one to a cold reflector.

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More information

Published date: May 2009
Keywords: x-rays: general, x-rays: individual: AX J183039?1002

Identifiers

Local EPrints ID: 144779
URI: https://eprints.soton.ac.uk/id/eprint/144779
ISSN: 1745-3933
PURE UUID: 17882032-db4b-4ac5-9d52-716854f2eb68
ORCID for A.J. Bird: ORCID iD orcid.org/0000-0002-6888-8937

Catalogue record

Date deposited: 24 May 2010 13:46
Last modified: 20 Jul 2019 01:22

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