Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-05-30
Nuovo Cim.C028:299-302,2005
Astronomy and Astrophysics
Astrophysics
60 pages, 8 figures. To be submitted to the Astrophysical Journal Supplement Series in conjunction with the BATSE 5B catalog.
Scientific paper
10.1393/ncc/i2005-10044-2
We present Interplanetary Network (IPN) localization information for 343 gamma-ray bursts observed by the Burst and Transient Source Experiment (BATSE) between the end of the 4th BATSE catalog and the end of the Compton Gamma-Ray Observatory (CGRO) mission, obtained by analyzing the arrival times of these bursts at the Ulysses, Near Earth Asteroid Rendezvous (NEAR), and CGRO spacecraft. For any given burst observed by CGRO and one other spacecraft, arrival time analysis (or "triangulation") results in an annulus of possible arrival directions whose half-width varies between 11 arcseconds and 21 degrees, depending on the intensity, time history, and arrival direction of the burst,as well as the distance between the spacecraft. This annulus generally intersects the BATSE error circle, resulting in an average reduction of the area of a factor of 20. When all three spacecraft observe a burst, the result is an error box whose area varies between 1 and 48000 square arcminutes, resulting in an average reduction of the BATSE error circle area of a factor of 87.
Boer Michel
Boynton William
Briggs Michael Stephen
Cline Thomas
Fishman Gerald
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