• DOI:10.1051/0004-6361:20053159
• Corpus ID: 18101508

The 1st INTEGRAL SPI-ACS gamma-ray burst catalogue

@article{Rau2005The1I,
  title={The 1st INTEGRAL SPI-ACS gamma-ray burst catalogue},
  author={Arne Rau and A. von Kienlin and Kevin Hurley and Garrett Ebelke Mpe Garching and U. California Berkeley},
  journal={Astronomy and Astrophysics},
  year={2005},
  volume={438},
  pages={1175-1183}
}

• A. Rau, A. Kienlin, +2 authors U. Berkeley
• Published 15 April 2005
• Physics
• Astronomy and Astrophysics

We 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 ∼80keV but lacks spatial and spectral information. In this catalogue, the properties derived from the 50ms light curves (e.g., T 90 , C max , C int , variability, V/V max ) 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/V max 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.