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Short Gamma-Ray Bursts observed by PHEBUS (1995)

Dezalay, J -P. ; Barat, C. ; Talon, R. ; [et al.]

Springer

Astrophysics and space science 231 (1995), S. 115-118

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ISSN: 1572-946X

Keywords: Gamma-Ray Bursts

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract Statistical studies of Gamma-Ray Burst (GRB) properties have recently led to the discovery of a subclass within the population of classical events (Dezalayet al. 1992, Kouveliotouet al. 1993). Bursts belonging to this subclass are characterized by short durations, typically less than 2 seconds, and harder spectra on average. Using the PHEBUS GRB data set, we analyse the distributions of peak intensity, hardness ratio, and duration of the two subclasses. We also compare the sum spectra obtained with the brightest events to determine the ratio of total energies observed for each population.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00658598

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