GRB980519 X射线尾后glow
天体物理学
2009-10-31 v1
摘要
在20个定位精度达到角分钟级的伽玛射线暴(GRB)中，GRB980519是被BeppoSAX宽场镜检测到的第13个事件。BeppoSAX窄场仪器于高能事件发生约9.5小时后进行了一次X射线目标观测，揭示了0.1--10 keV能谱范围内的X射线尾后glow辐射。该 fluxes 衰减尤其迅速，幂律指数约为1.8，是目前测得的最快衰减率。显现出爆发活性的迹象。其2.8 (+0.6, -0.5)的功率谱指数较软，但并非所有GRB尾后glow都如此。
引用
@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}
}
备注
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.)