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J/A+A/522/A68      Variable sources detected by INTEGRAL   (Telezhinsky+, 2010)

The catalog of variable sources detected by INTEGRAL. I. Catalog and techniques. Telezhinsky I., Eckert D., Savchenko V., Neronov A., Produit N., Courvoisier T.J.-L. <Astron. Astrophys. 522, A68 (2010)> =2010A&A...522A..68T
ADC_Keywords: Surveys ; Gamma rays ; X-ray sources Keywords: gamma-rays: observations - catalogs Abstract: In 6 years of operation, INTEGRAL/ISGRI revealed more than 500 sources. Many of these sources are variable. Taking into account that nearly half of INTEGRAL/ISGRI sources are new and many of them are still unidentified, the variability properties of the sources can serve as additional parameters that may help to classify and identify the unknown sources. In order to study the variability properties of the sources detected by INTEGRAL/ISGRI we develop a method to quantify the variability of a source. We describe here our techniques and compile a catalog of the sources that fit our criteria of variability. Description: The catalog gives the values of fractional variability, the flux, and the corresponding 2σ errors of the sources from the INTEGRAL Reference Catalog (Cat. J/A+A/411/L59) version 30. The data is given for 3 energy bands: 20-40, 40-100, and 100-200keV. The exposure times of the sources are given for each energy band only if the source was detected in the given band. The last column gives the source type according to the reference catalog. If the source is localized in more then one map then the weighted mean values of the flux and variability are given. The sources active during specific time periods and not detected at the total variability map are indicated with "b" letter in the Flag column. The sources detected only at the total variability map are indicated with "i" letter respectively. Letter "g" indicates that the source was affected by the "ghost". The numbers after the variability columns show the time period map where the source is visible and asterix means that the source is not detected at the respective significance map. Lower limit for fractional variability is given in such a case. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 159 202 The catalog of variable sources detected by INTEGRAL
See also: J/A+A/411/L59 : INTEGRAL reference catalog (Ebisawa+, 2003) Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Source number in catalog 5- 22 A18 --- Name Source name 24- 25 A2 --- n_Name [bgi ] Source peculiarities (1) 27 A1 --- l_VB1 Limit flag on VB1 (2) 28- 33 F6.3 --- VB1 ?=- Fractional variability, band 20-40keV 35- 39 F5.3 --- e_VB1 ?=- VB1 error 41- 46 A6 --- Map1 Map number(s) where the source is detected (3) 48 A1 --- l_FB1 Limit flag on VF1 (2) 49- 55 F7.3 10-14W/m2 FB1 ?=- Flux, band 20-40keV (10-11erg/cm2/s) 57- 61 F5.3 10-14W/m2 e_FB1 ?=- FB1 error 63- 69 F7.1 ks EB1 ?=- Exposure time, band 20-40keV 71 A1 --- l_VB2 Limit flag on VB2 (2) 72- 77 F6.3 --- VB2 ?=- Fractional variability, band 40-100keV 79- 83 F5.3 --- e_VB2 ?=- VB2 error 85- 89 A5 --- Map2 Map number(s) where the source is detected (3) 91 A1 --- l_FB2 Limit flag on FB2 (2) 92- 98 F7.3 10-14W/m2 FB2 ?=- Flux, band 40-100 keV (10-11erg/cm2/s) 100-104 F5.3 10-14W/m2 e_FB2 ?=- FB2 error 106-112 F7.1 ks EB2 ?=- Exposure time, band 40-100keV 114 A1 --- l_VB3 Limit flag on VB3 (2) 115-119 F5.3 --- VB3 ?=- Fractional variability, band 100-200keV 121-125 F5.3 --- e_VB3 ?=- VB3 error 127-131 A5 --- Map3 Map number(s) where the source is detected (3) 133 A1 --- l_FB3 Limit flag on FB3 (2) 134-140 F7.3 10-14W/m2 FB3 ?=- Flux, band 100-200keV (10-11erg/cm2/s) 142-146 F5.3 10-14W/m2 e_FB3 ?=- FB3 error 148-154 F7.1 ks EB3 ?=- Exposure time, band 100-200keV 156-159 A4 --- Class Source class
Note (1): Flags as follow: b = sources active during specific time periods and not detected at the total variability map i = sources detected only at the total variability map g = source variability is slightly affected by a "ghost", can go along with "b" and "i" flags Note (2): The fractional variability or flux record represents a 3σ lower limit. Note (3): The numbers show the time period map where the source is visible and asterix means that the source is not detected at the respective significance map. Lower limit for fractional variability is given in such a case.
Acknowledgements: Igor Telezhinsky, telezhinsky(at)gmail.com
(End) Igor Telezhinsky [DESY, Germany], Patricia Vannier [CDS] 10-Aug-2010
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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