The X-ray afterglow of GRB980519
Abstract
Over a total of 20 gamma-ray bursts localized with arcmin accuracies, GRB980519 represents the 13th detected by the BeppoSAX Wide Field Cameras. An X-ray TOO observation performed by the BeppoSAX Narrow Field Instruments, starting about 9.5 hours after the high energy event, revealed X-ray afterglow emission in the 0.1--10 keV energy range. The flux decay was particularly fast with a power-law index of ~ 1.8. This is the fastest decay so far measured. Signs of bursting activity are evident. The power-law spectral index of 2.8 (+0.6, -0.5) is quite soft but not unique among GRB afterglows.
Cite
@article{arxiv.astro-ph/9904169,
title = {The X-ray afterglow of GRB980519},
author = {L. Nicastro and L. Amati and L. A. Antonelli and E. Costa and G. Cusumano and M. Feroci and F. Frontera and E. Palazzi and E. Pian and L. Piro},
journal= {arXiv preprint arXiv:astro-ph/9904169},
year = {2009}
}
Comments
2 pages; 3 EPS figures; requires aa.cls, psfig.sty; accepted for publication on A&AS (Proc. of ``Gamma-Ray Bursts in the Afterglow Era'', Rome 3-6 Nov. 1998.)