IBIS
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2004ApJ...607L..33Bird+
J/ApJ/607/L33 First IBIS Catalog: 20-100keV (Bird+, 2004)
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The first IBIS/ISGRI Soft Gamma-Ray Galactic Plane Survey Catalog.
Bird A.J., Barlow E.J., Bassani L., Bazzano A., Bodaghee A., Capitanio F.,
Cocchi M., Del Santo M., Dean A.J., Hill A.B., Lebrun F., Malaguti G.,
Malizia A., Much R., Shaw S.E., Stephen J.B., Terrier R., Ubertini P.,
Walter R.
=2004ApJ...607L..33B (SIMBAD/NED BibCode)
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ADC_Keywords: Surveys ; Gamma rays
Mission_Name: INTEGRAL
Keywords: Galaxy: general - gamma rays: observations - surveys
Abstract:
We report the first high-energy survey catalog obtained with the IBIS
gamma-ray imager on board INTEGRAL. The analysis has been performed on
the first-year Core Program ISGRI data comprising both Galactic Plane
Scan and Galactic Centre Deep Exposure pointings for a total exposure
time exceeding 5Ms. This initial survey has revealed the presence of
~120 sources detected with the unprecedented sensitivity of ~1mCrab
in the energy range 20-100keV. Each source is located to an accuracy
between 1' and 3', depending on its brightness. The outstanding IBIS
capability to locate soft {gamma}-ray emitters has allowed us to
identify most of the detected sources with already known Galactic
X-ray binary systems, while 28 of the objects are of unknown nature.
Description:
The data set consists of all Core Program observations (the Galactic
Plane Scan and the Galactic Centre Deep Exposure) performed between
2003 February 28 (revolution 46) and October 10 (revolution 120), a
total of 2529 pointings.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 90 123 The First IBIS Catalog: 20-100keV
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- [BBB2004b] Sequential number
5- 20 A16 --- Name Source name
22- 28 F7.3 deg RAdeg Right ascension (J2000)
30- 36 F7.3 deg DEdeg Declination (J2000)
38 A1 --- l_F20-40 Limit flag on F20-40
39- 43 F5.2 ct/s F20-40 Count-rate in 20-40keV band
45- 48 F4.2 ct/s e_F20-40 ? rms uncertainty on F20-40
50 A1 --- l_F40-100 Limit flag on F40-100
51- 55 F5.2 ct/s F40-100 ? Count-rate in 40-100keV band
57- 60 F4.2 ct/s e_F40-100 ? rms uncertainty on F40-100
62- 67 F6.1 --- Sign Significance in primary detection band
(30-50keV) (1)
68 A1 ---- n_Sign [*] If *, Significance in the 20-40keV band
71- 73 I3 ks Texp On-source exposure, adjusted for off-axis
vignetting effects
76- 95 A20 --- Type Type of source (2)
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Note (1): Significance in primary detection band (30-50keV), or in the
20-40keV band if marked with an asterisk
Note (2): Type identifiers:
A = Atoll source
AGN = active galactic nucleus
B = burster (neutron star)
BHC = black hole candidate
CV = cataclysmic variable
D = dipping source
G = globular cluster X-ray source
HMXB = high-mass X-ray binary
LMXB = low-mass X-ray binary
PSR = radio pulsar
PWN = pulsar wind nebula
SGR = soft gamma repeater
Sy1 = Seyfert 1 galaxy
Sy2 = Seyfert 2 galaxy
SNR = supernova remnant
T = transient
U = ultrasoft source
XP = X-ray pulsar
Z = Z-type source (neutron stars)
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History:
From electronic version of the journal
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(End) James Marcout, Patricia Vannier [CDS] 02-Jul-2004