The second Konus-Wind catalog of short gamma-ray bursts
D. S. Svinkin, D. D. Frederiks, R. L. Aptekar, S. V. Golenetskii, V., D. Pal'shin, Ph. P. Oleynik, A. E. Tsvetkova, M. V. Ulanov, T. L. Cline, K., Hurley
TL;DR
This paper presents a comprehensive catalog of 295 short gamma-ray bursts detected by Konus-Wind over 16 years, including detailed temporal and spectral analyses, spectral components, and classification insights.
Contribution
It provides the second Konus-Wind catalog with systematic analysis of short GRBs, including spectral modeling and evidence for extended emission and additional spectral components.
Findings
Identification of spectral lags and durations for 295 GRBs
Detection of an additional power-law spectral component in some bursts
Evidence of extended emission in a subset of short GRBs
Abstract
In this catalog, we present the results of a systematic study of 295 short gamma-ray bursts (GRBs) detected by Konus-Wind (KW) from 1994 to 2010. From the temporal and spectral analyses of the sample, we provide the burst durations, the spectral lags, the results of spectral fits with three model functions, the total energy fluences and the peak energy fluxes of the bursts. We discuss evidence found for an additional power-law spectral component and the presence of extended emission in a fraction of the KW short GRBs. Finally, we consider the results obtained in the context of the Type I (merger-origin) / Type II (collapsar-origin) classifications.
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