English

On the Fast Spectral Variability of GRBs

Astrophysics 2009-11-06 v1

Abstract

Fast spectral variability of gamma-ray burst emission is considered for a number of events seen by the Konus-Wind experiment. The variability manifests itself as a strong correlation between instantaneous energy flux FF and peak energy EpE_p. In the (F,EpF,E_p) plane, the correlation produces distinct tracks in the form of branches and loops representing the different parts of a burst time history. Despite the variety of features seen in different events, the main characteristics of the spectral evolution produce a quite consistent pattern.

Keywords

Cite

@article{arxiv.astro-ph/0102170,
  title  = {On the Fast Spectral Variability of GRBs},
  author = {E. P. Mazets and R. L. Aptekar and P. S. Butterworth and T. L. Cline and D. D. Frederiks and S. V. Golenetskii and V. N. Il'inskii and V. D. Pal'shin},
  journal= {arXiv preprint arXiv:astro-ph/0102170},
  year   = {2009}
}

Comments

3 pages with 2 figures; to appear in the Proceedings of the workshop "Gamma-Ray Bursts in the Afterglow Era: 2nd Workshop", held in Rome, October 17-20, 2000