The 1st INTEGRAL SPI-ACS Gamma-Ray Burst Catalogue

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dc.creatorRau, A.
dc.creatorKienlin, A. v.
dc.creatorHurley, K.
dc.creatorLichti, G. G.
dc.date2005-04-15
dc.date.accessioned2026-07-07T02:17:28Z
dc.date.available2026-07-07T02:17:28Z
dc.descriptionWe present the sample of gamma-ray bursts detected with the anti-coincidence shield ACS of the spectrometer SPI on-board INTEGRAL for the first 26.5 months of mission operation (up to Jan 2005). SPI-ACS works as a nearly omnidirectional gamma-ray burst detector above ~80 keV but lacks spatial and spectral information. In this catalogue, the properties derived from the 50 ms light curves (e.g., T90, Cmax, Cint, variability, V/Vmax) are given for each candidate burst in the sample. A strong excess of very short events with durations <0.25 s is found. This population is shown to be significantly different from the short- and long-duration burst sample by means of the intensity distribution and V/Vmax test and is certainly connected with cosmic ray hits in the detector. A rate of 0.3 true gamma-ray bursts per day is observed.
dc.description10 pages, 9 figures, A&A accepted
dc.identifierhttps://arxiv.org/abs/astro-ph/0504357
dc.identifierhttp://arxiv.org/abs/astro-ph/0504357
dc.identifierAstron.Astrophys. 438 (2005) 1175-1183
dc.identifierdoi:10.1051/0004-6361:20053159
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/9185
dc.subjectAstrophysics
dc.titleThe 1st INTEGRAL SPI-ACS Gamma-Ray Burst Catalogue
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