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Title: THE IBIS SOFT GAMMA-RAY SKY AFTER 1000 INTEGRAL ORBITS

Here we report an all-sky soft gamma-ray source catalog based on IBIS observations performed during the first 1000 orbits of INTEGRAL. The database for the construction of the source list consists of all good-quality data available, from the launch in 2002, up to the end of 2010. This corresponds to ∼110 Ms of scientific public observations, with a concentrated coverage on the Galactic Plane and extragalactic deep exposures. This new catalog includes 939 sources above a 4.5σ significance threshold detected in the 17–100 keV energy band, of which 120 sources represent previously undiscovered soft gamma-ray emitters. The source positions are determined, mean fluxes are provided in two main energy bands, and these are both reported together with the overall source exposure. Indicative levels of variability are provided, and outburst times and durations are given for transient sources. A comparison is made with previous IBIS catalogs and catalogs from other similar missions.
Authors:
;  [1] ; ; ;  [2] ; ; ;  [3] ;  [4]
  1. School of Physics and Astronomy, University of Southampton, SO17 1BJ (United Kingdom)
  2. IAPS/INAF (Italy)
  3. IASF/INAF, Bologna (Italy)
  4. ESA-ESTEC, Research and Scientific Support Dept., Keplerlaan 1, 2201 AZ, Noordwijk (Netherlands)
Publication Date:
OSTI Identifier:
22519958
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal, Supplement Series; Journal Volume: 223; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; CATALOGS; COMPARATIVE EVALUATIONS; COSMIC GAMMA SOURCES; GAMMA RADIATION; INTEGRALS; KEV RANGE; MILKY WAY; ORBITS; SKY; TRANSIENTS