Short gamma-ray bursts in the SPI-ACS INTEGRAL experiment

Details Short gamma-ray bursts in the SPI-ACS INTEGRAL experiment Short gamma-ray bursts in the SPI-ACS INTEGRAL experiment

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010astbu..65..326m&link_type=abstract

Astrophysical Bulletin, Volume 65, Issue 4, pp.326-333

Astronomy and Astrophysics

Astrophysics

Gamma-Ray Burst: General

Scientific paper

We analyze short-duration gamma-ray bursts ( T 90<2 s) recorded in the SPI-ACS experiment of the INTEGRAL observatory. We found an extended emission in the averaged light curve of both short-duration gamma-ray bursts and unidentified short-duration events. We show that the fraction of short-duration gamma-ray bursts among all the gamma-ray bursts recorded in the SPI-ACS experiment may be as high as 30 to 45%. We find the fraction of short gamma-ray bursts to augment while increasing the lower energy threshold. We report evidence for the absence of the class of very short gamma-ray bursts.

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