Hostname: page-component-745bb68f8f-kw2vx Total loading time: 0 Render date: 2025-01-15T00:21:46.652Z Has data issue: false hasContentIssue false
  • English
  • Français

Spectral Evolution of Short GRBS on sub-millisecond timescale

Published online by Cambridge University Press:  22 July 2013

A. Chernenko
A. Chernenko*
Affiliation:
Space Research Institute, Moscow
Get access

Abstract

There has been growing consensus that short and long GRBs are associated with twodifferent populations of astrophysical sources: mergers and SN explosions, respectively.While temporal properties of short and long GRBs could be considered with similar depthand accuracy, patterns of spectral variability of the 2 classes of GRBs are much harder tocompare. This is due to the fact, that short GRBs exhibit variability on time scalesshorter than 1 ms and count rate, measured at such short time scales, is not sufficientfor reliable spectroscopy even for the brightest events.

In this situation, any new possibility to look at spectral evolution of short GRBs onsub-millisecond time scales in terms of spectral parameters, may provide more solidbackground for theoretical analysis. In this paper we present analysis of spectralevolution of short GRBs in terms of Band spectral function parameters, using the earlierdeveloped Global Fit approach (GFA).

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 61: Gamma-ray Bursts: 15 Years of GRB Afterglows – Progenitors,Environments and Host Galaxies from the Nearby to the Early Universe , 2013 , pp. 337 - 340
Copyright
© EAS, EDP Sciences 2013

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Ford, L.A., Band, D.L., Matteson, J.L., et al., 1995, ApJ, 439, 307 CrossRef
Band, D., Matteson, J., Ford, L., et al., 1993, ApJ, 413, 281 CrossRef
Chernenko, A., 2002, in the Proceedings of the IAU 8th Asian-Pacific Regional meeting, v.2, ed. S. Ikeuchi, J. Hearnshaw & T. Hanawa, 321