Observations of short bursts from soft gamma repeaters detected by HETE-2

Details Observations of short bursts from soft gamma repeaters detected by HETE-2 Observations of short bursts from soft gamma repeaters detected by HETE-2

Jan 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008asthe.101....7n&link_type=abstract

The Astronomical Herald (ISSN 0374-2466), Vol. 101, No. 1, p. 7 - 17 (2008)

Astronomy and Astrophysics

Astronomy

Gamma-Ray Bursts

Scientific paper

The HETE-2 satellite detected 55 SGR short bursts from 2001 to 2005. Timing and energy spectral analyses of the short bursts were performed using 2-400 keV data. There are three main results. First, a time lag of 2.2 +/-0.4 ms between 30-100 keV and 2-10 keV emissions is found from the timing analysis. Second, energy spectra are well reproduced by a two-blackbody function with temperatures about 4 keV and about 11 keV. Third, a power-law index of a cumulative number-intensity distribution varies in each period.

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