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J/ApJ/636/765     Second IBIS/ISGRI soft gamma-ray survey catalog  (Bird+, 2006)

The second IBIS/ISGRI soft gamma-ray survey catalog. Bird A.J., Barlow E.J., Bassani L., Bazzano A., Belanger G., Bodaghee A., Capitanio F., Dean A.J., Fiocchi M., Hill A.B., Lebrun F., Malizia A., Mas-hesse J.M., Molina M., Moran L., Renaud M., Sguera V., Shaw S.E., Stephen J.B., Terrier R., Ubertini P., Walter R., Willis D.R., Winkler C. <Astrophys. J., 636, 765-776 (2006)> =2006ApJ...636..765B
ADC_Keywords: Surveys ; Gamma rays Mission_Name: INTEGRAL Keywords: Galaxy: general - gamma rays: observations - surveys Abstract: In this paper we report the second soft gamma-ray source catalog obtained with the IBIS/ISGRI gamma-ray imager on board the INTEGRAL satellite. The scientific data set is based on more than 10Ms of high-quality observations performed during the first 2 years of Core Program and public IBIS/ISGRI observations, and covers 50% of the whole sky. The main aim of the first survey was to scan systematically, for the first time at energies above 20keV, the whole Galactic plane to achieve a limiting sensitivity of 1mCrab in the central radian. The target of the second year of the INTEGRAL mission lifetime was to expand as much as possible our knowledge of the soft gamma-ray sky, with the same limiting sensitivity, to at least 50% of the whole sky, mainly by including a substantial coverage of extragalactic fields. This catalog comprises more than 200 high-energy sources detected in the energy range 20-100keV, including new transients not active during the first year of operation, faint persistent objects revealed with longer exposure time, and several Galactic and extragalactic sources in sky regions not observed in the first survey. The mean position error for all the sources detected with significance above 10σ is 40", enough to identify most of them with a known X-ray counterpart and to unveil the nature of most of the strongly absorbed ones, even though they are very difficult to detect in X-rays. Description: The data are collected with the low-energy array, ISGRI (INTEGRAL Soft Gamma-Ray Imager). This "all sky" catalog uses mosaic image data from the first 2 years of Core Program observations, including the Galactic plane scans, Galactic center deep exposures (GCDEs), and pointed observations from the first year of public data. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 112 209 2nd IBIS/ISGRI catalog notes.dat 77 30 Notes types.dat 55 27 Source types refs.dat 130 69 References
See also: J/ApJ/607/L33 : First IBIS Catalog: 20-100keV (Bird+, 2004) V/123 : Catalog of Cataclysmic Variables (Downes+ 2001-2006) V/106 : Catalogue of X-ray binaries (Liu+ 2001) VII/248 : Quasars and Active Galactic Nuclei (12th Ed.) (Veron+ 2006) J/ApJS/154/585 : BATSE earth occultation deep sample results (Harmon+, 2004) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 17 A17 --- Name Source name 19- 21 A3 --- n_Name Flag on Name (detailed in notes.dat) 23- 29 F7.3 deg RAdeg Right Ascension in decimal degrees (J2000) 31- 37 F7.3 deg DEdeg Declination in decimal degrees (J2000) 39- 41 F3.1 arcmin e_pos Positional error (1) 43 A1 --- l_F20-40 Limit flag on F20-40 44- 49 F6.1 --- F20-40 ? The 20-40keV flux in units of mCrab (2) 51- 53 F3.1 --- e_F20-40 ? Uncertainty in F20-40 in units of mCrab 55 A1 --- l_F40-100 Limit flag on F40-100 56- 61 F6.1 --- F40-100 ? The 40-100keV flux in units of mCrab (3) 63- 65 F3.1 --- e_F40-100 ? Uncertainty in F40-100 in units of mCrab 67- 72 F6.1 --- Sig Maximum significance 73- 75 A3 --- f_Sig Flag on Sig (4) 77- 80 I4 ks Exp Exposure time 82- 99 A18 --- Type Source type (detailed in types.dat) 101-112 A12 --- Ref Reference(s) (detailed in refs.dat)
Note (1): Position errors are expressed as radius of 1σ error circle. Note (2): Appropriate conversion factor for 20-40keV range: 10mCrab=7.57x10-11mW/m2=1.71x10-3ph/cm2/s1. Note (3): Appropriate conversion factor for 40-100keV range: 10mCrab=9.42x10-11mW/m2=9.67x10-4ph/cm2/s1. Note (4): Maximimum significance is quoted in either: * = 20-40keV band; ** = 20-100keV band; *** = 30-60keV band; NULL = significance in one revolution.
Byte-by-byte Description of file: notes.dat
Bytes Format Units Label Explanations
1 A1 --- Note Note 3- 77 A75 --- Com Comment
Byte-by-byte Description of file: types.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Type Source type 12- 55 A44 --- Def Definition
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Ref Reference number 4- 22 A19 --- Bibcode Bibcode 24- 46 A23 --- Aut Author's name 48-130 A83 --- Com Comment
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 29-Dec-2006
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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