J/PAZh/30/430 INTEGRAL X-ray source in Galactic center (Revnivtsev+, 2004)
A hard X-ray survey of the galactic-center region with the IBIS telescope of
the INTEGRAL observatory: a catalog of sources.
Revnivtsev M.G., Sunyaev R.A., Varshalovich D.A., Zheleznyakov V.V.,
Cherepashchuk A.M., Lutovinov A.A., Churazov E.M., Grebenev S.A.,
Gilfanov M.R.
<Pis'ma Astron. Zh. 30, 430 (2004)>
=2004PAZh...30..430R 2004PAZh...30..430R
=2004AstL...30..382R 2004AstL...30..382R
ADC_Keywords: X-ray sources ; Gamma rays
Mission_Name: INTEGRAL
Abstract:
From August 23 through September 24, 2003, the INTEGRAL Observatory
conducted a deep survey of Galactic-Center region with a
record-breaking sensitivity at energies above 20keV. We detected a
total of 60 sources with fluxes above 1.5mCrab in the range 18-60keV.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 79 60 List of sources detected during the deep survey of
the galactic center in August and September 2003.
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See also:
J/A+A/368/835 : Soft X-ray sources in the Galactic Center region (Sidoli+ 2001)
J/ApJ/589/225 : Chandra X-ray sources toward Galactic Center (Feigelson+ 2003)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Seq Running number of source
3 A1 --- n_Seq [b] Note on Seq (1)
6- 12 F7.3 deg RAdeg Right Ascension (J2000)
15- 21 F7.3 deg DEdeg Declination (J2000)
24- 28 F5.1 13.6fW/m2 Flux Flux for 18-60keV energy band in
units of mCrab (2)
31- 33 F3.1 13.6fW/m2 e_Flux Mean error on Flux (3)
36- 40 F5.1 --- S/N Signal to noise ratio
43- 67 A25 --- Ident Identification with known source
69- 76 A8 --- Class Class of identified object (4)
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Note (1): b: Source lies at a distance of 0.7deg from the galactic center
and may be a superposition of several weaker point like sources.
Note (2): In the energy band 18-60keV, 1mCrab = 1.3612*10-11erg/s/cm2.
Note (3): Only the statistical flux uncertainties are given. The systematic
uncertainty in absolute flux value (∼10%) is not included.
Note (4): Classification uses the following abbreviations:
LMXB: low mass X-ray binary
HMXB: high mass X-ray binary
BH: black hole
NS: neutron star
AGN: active galactic nucleus
CV: cataclysmic variable
AXP: anomalous X-ray pulsar
SGR: soft gamma repeater
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(End) Veta Avedisova (INASAN) 14-Oct-2004