INTBSC - INTEGRAL Bright Source Catalog
The Bright Source Catalog is a collaborative effort between the INTEGRAL Science Data Center (ISDC) in Switzerland and the NASA Goddard Space Flight Center (GSFC) INTEGRAL Guest Observer Facility (GOF). The results presented here are a result of a semi-automated analysis and they should be considered as approximate: they are intended to serve as a guideline to those interested in pursuing more detailed follow-up analyses.
The data from the imager ISGRI (Lebrun et al. 2003, A&A, 411, L141) have been analyzed at the INTEGRAL Science Data Centre (ISDC), while the SPI (Vedrenne et al. 2003, A&A, 411, L63) data analysis was performed at GSFC as a service of the INTEGRAL GOF.
Further information and analysis results can be found linked from the INTEGRAL GOF page at the URL http://heasarc.gsfc.nasa.gov/docs/integral/integralgof.html
Type Description SPI lightcurve (20 - 40 keV) in ASCII format ISGRI lightcurve (22 - 40 keV and 40 - 80 keV) in ASCII format and as a JPEG plot; Note: a count rate of 97.3 cps (22 - 40 keV) and 64.4 cps (40 - 80 keV) corresponds to 1 Crab ISGRI analysis summary for all analyzed observations and the two energy bins in ASCII format
The INTEGRAL Bright Source Catalog designation of the source.
The source type according to a classification scheme which contains the following acronyms, among others:
source_type Meaning BHC Black Hole Candidate HMXB High-Mass X-ray Binary LMXB Low-Mass X-Ray Binary SNR Supernova Remnant Sy Seyfert Galaxy XB X-ray Binary
The Right Ascension of the source in the specified equinox, given in J2000 equatorial coordinates and to a precision of 1 second of time in the originating table.
The Declination of the source in the specified equinox, given in J2000 equatorial coordinates and to a precision of 1 second of time in the originating table.
The Galactic Longitude of the source.
The Galactic Latitude of the source.
The number of pointings in which the source was detected by the ISGRI instrument.
The average SPI flux, in milliCrabs.
The uncertainty in the average SPI flux, in milliCrabs.
The highest measured SPI flux which has at least a 3-sigma significance, in milliCrabs.
The uncertainty in the highest measured SPI flux, in milliCrabs.
The lowest measured SPI flux which has at least a 1-sigma significance, in milliCrabs.
The uncertainty in the lowest measured SPI flux, in milliCrabs.
Any remarks regarding the SPI analysis. This field may include an embedded link to a web page with more information on the SPI analysis.
The IBIS/ISGRI 22-40 keV average count rate, in counts per second, based on measurements with at least a 1.5-sigma significance. A count rate of 90 ct/s corresponds to 1 Crab.
The uncertainty in the IBIS/ISGRI 22-40 keV average count rate, in counts per second.
The IBIS/ISGRI 40-80 keV average count rate, in counts per second, based on measurements with at least a 1.5-sigma significance. A count rate of 66 ct/s corresponds to 1 Crab.
The uncertainty in the IBIS/ISGRI 40-80 keV average count rate, in counts per second.
The HEASARC Browse object classification, based on the value of the source_type parameter.
The data result set identifier. This parameter is used by Browse to link to the corresponding INTEGRAL data products.