J/MNRAS/460/19 Update of INTEGRAL/IBIS AGN catalogue (Malizia+, 2016)
The INTEGRAL/IBIS AGN catalogue: an update.
Malizia A., Landi R., Molina M., Bassani L., Bazzano A., Bird A.J.,
Ubertini P.
<Mon. Not. R. Astron. Soc., 460, 19-29 (2016)>
=2016MNRAS.460...19M 2016MNRAS.460...19M (SIMBAD/NED BibCode)
ADC_Keywords: Surveys ; Gamma rays ; Active gal. nuclei
Keywords: catalogues - surveys - galaxies: active
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-Newtonand 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 2-10keV and
20-40keV bands.
Description:
In this paper we present the X-ray and optical follow-up work on 107
new AGN recently detected by INTEGRAL. Luckily, we have been able to
obtain full X-ray coverage of the entire sample making use of data
from Swift/XRT, Newton-XMM and NuSTAR archives or through Swift/XRT
follow up observations triggered by us.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 178 116 INTEGRAL/IBIS AGN
refs.dat 98 49 References
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See also:
J/MNRAS/426/1750 : INTEGRAL/IBIS AGN catalogue (Malizia+, 2012)
J/A+A/545/A27 : 9yr INTEGRAL/IBIS Gal. Hard X-Ray Survey (Krivonos+, 2012)
J/ApJS/223/15 : 8yr INTEGRAL/IBIS soft gamma-ray source obs. (Bird+, 2016)
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1 A1 --- n_Name [c] c for AGN candidate
3- 23 A21 --- Name Name
24- 25 A2 --- f_Name [fi ] Note on Nane (1)
27- 50 A24 --- AName Alternative name
52- 53 I2 h RAh Right ascension (J2000)
55- 56 I2 min RAm Right ascension (J2000)
58- 61 F4.1 s RAs Right ascension (J2000)
63 A1 --- DE- Declination sign (J2000)
64- 65 I2 deg DEd Declination (J2000)
67- 68 I2 arcmin DEm Declination (J2000)
70- 71 I2 arcsec DEs Declination (J2000)
73- 79 F7.5 --- z ?=- Redshift
82- 95 A14 --- Class Classification
96- 98 A3 --- n_Class [eh, ] Note on Class (1)
100-107 A8 --- Exp/Inst Exposure time or instrument name
108 A1 --- n_Exp/Inst [dg] Note on Exp/Inst (1)
110-114 F5.1 --- Signi ?=- XRT detection significance in the
0.3-10keV band (σ)
116 A1 --- l_NH Limit flag on NH
117-123 F7.2 10+22cm-2 NH ? Intrinsic column density
124 A1 --- --- [+]
125-131 F7.2 10+22cm-2 E_NH ? Error on NH (upper limit)
132 A1 --- --- [-]
133-138 F6.2 10+22cm-2 e_NH ? Error on NH (lower limit)
140-144 F5.2 --- GAMMA ? GAMMA photon index
145 A1 --- --- [+]
146-149 F4.2 --- E_GAMMA ? Error on GAMMA (upper limit)
150 A1 --- --- [-]
151-154 F4.2 --- e_GAMMA ? Error on GAMMA (lower limit)
155 A1 --- n_GAMMA [f] f for fixed GAMMA value
157-161 F5.2 10-15W/m2 FS ? Soft (2-10keV) flux
162 A1 --- --- [-]
163 I1 10-15W/m2 bFS ? Lower value of soft flux when interval
165-169 A5 --- n_FS Note on FS
171 A1 --- l_FH Limit flag on FH
172-175 F4.2 10-14W/m2 FH ? Hard (20-100keV) flux
177-178 I2 --- Ref Reference for X-ray spectral parameters,
in refs.dat file
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Note (1): Notes as follows:
f = already present in previous IBIS catalogues but only recently identified
as active galactic nuclei and hence reported here as new INTEGRAL AGN
i = two X-ray sources, 1 identified as a Sy 1.2 and 1 AGN candidate,
are present in the IBIS error box
e = new classification in Masetti et al. (in preparation)
h = the blazar object is blended with a CV but Bassani et al.
(2014A&A...561A.108B 2014A&A...561A.108B) have estimated that the 90 per cent hard X-ray
fluxed comes from the AGN
d = XMM data
g = NuSTAR data
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Ref Reference number
4- 22 A19 --- BibCode BibCode
24- 57 A34 --- Aut Author's name
59- 98 A40 --- Com Comments
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 28-Sep-2017