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The INTEGRAL/IBISAGN catalogue: an update

The INTEGRAL/IBISAGN catalogue: an update
The INTEGRAL/IBISAGN catalogue: an update
In the most recent IBIS survey based on observations performed during the first 1000 orbits of INTEGRAL, are listed 363 high-energy emitters firmly associated with AGN, 107 of which are reported here for the first time. We have used X-ray data to image the IBIS 90 per cent error circle of all the AGN in the sample of 107, in order to obtain the correct X-ray counterparts, locate them with arcsec accuracy and therefore pinpoint the correct optical counterparts. This procedure has led to the optical and spectral characterization of the entire sample. This new set consists of 34 broad line or type 1 AGN, 47 narrow line or type 2 AGN, 18 blazars and 8 sources of unknown class. These eight sources have been associated with AGN from their positional coincidence with 2MASX/Radio/X-ray sources. Seven high-energy emitters have been included since they are considered to be good AGN candidates. Spectral analysis has been already performed on 55 objects and the results from the most recent and/or best statistical measurements have been collected. For the remaining 52 sources, we report the spectral analysis for the first time in this work. We have been able to obtain the full X-ray coverage of the sample making use of data from Swift/XRT, XMM–Newton and NuSTAR. In addition to the spectral characterization of the entire sample, this analysis has enabled us to identify peculiar sources and by comparing different data sets, highlight flux variability in the 2–10 keV and 20–40 keV bands.
0035-8711
19-29
Malizia, A.
efa63850-cf26-482c-ae3b-54b0c8fb8a87
Landi, R.
b8243478-d7a1-4774-8a66-4158a65a33d3
Molina, M.
28a3f3b6-aedf-4fa5-9a4f-dbcba001435d
Bassani, L.
07e5602c-f97e-4334-a0fa-c2212431a61a
Bazzano, A.
6895fd67-4936-4d13-b934-d34a1ff9fedb
Bird, A.J.
045ee141-4720-46fd-a412-5aa848a91b32
Ubertini, P.
7035748e-152c-473e-8766-a2fa3ac49fcb
Malizia, A.
efa63850-cf26-482c-ae3b-54b0c8fb8a87
Landi, R.
b8243478-d7a1-4774-8a66-4158a65a33d3
Molina, M.
28a3f3b6-aedf-4fa5-9a4f-dbcba001435d
Bassani, L.
07e5602c-f97e-4334-a0fa-c2212431a61a
Bazzano, A.
6895fd67-4936-4d13-b934-d34a1ff9fedb
Bird, A.J.
045ee141-4720-46fd-a412-5aa848a91b32
Ubertini, P.
7035748e-152c-473e-8766-a2fa3ac49fcb

Malizia, A., Landi, R., Molina, M., Bassani, L., Bazzano, A., Bird, A.J. and Ubertini, P. (2016) The INTEGRAL/IBISAGN catalogue: an update. Monthly Notices of the Royal Astronomical Society, 460 (1), 19-29. (doi:10.1093/mnras/stw972).

Record type: Article

Abstract

In the most recent IBIS survey based on observations performed during the first 1000 orbits of INTEGRAL, are listed 363 high-energy emitters firmly associated with AGN, 107 of which are reported here for the first time. We have used X-ray data to image the IBIS 90 per cent error circle of all the AGN in the sample of 107, in order to obtain the correct X-ray counterparts, locate them with arcsec accuracy and therefore pinpoint the correct optical counterparts. This procedure has led to the optical and spectral characterization of the entire sample. This new set consists of 34 broad line or type 1 AGN, 47 narrow line or type 2 AGN, 18 blazars and 8 sources of unknown class. These eight sources have been associated with AGN from their positional coincidence with 2MASX/Radio/X-ray sources. Seven high-energy emitters have been included since they are considered to be good AGN candidates. Spectral analysis has been already performed on 55 objects and the results from the most recent and/or best statistical measurements have been collected. For the remaining 52 sources, we report the spectral analysis for the first time in this work. We have been able to obtain the full X-ray coverage of the sample making use of data from Swift/XRT, XMM–Newton and NuSTAR. In addition to the spectral characterization of the entire sample, this analysis has enabled us to identify peculiar sources and by comparing different data sets, highlight flux variability in the 2–10 keV and 20–40 keV bands.

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Accepted/In Press date: 21 April 2016
e-pub ahead of print date: 23 April 2016
Published date: 21 July 2016
Organisations: Astronomy Group

Identifiers

Local EPrints ID: 401100
URI: http://eprints.soton.ac.uk/id/eprint/401100
ISSN: 0035-8711
PURE UUID: 3f2fbb61-f1d1-49a4-be9a-7e6d2c9f372c
ORCID for A.J. Bird: ORCID iD orcid.org/0000-0002-6888-8937

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Date deposited: 10 Oct 2016 09:09
Last modified: 17 Dec 2019 02:01

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