X-Ray Afterglows
We summarise the X-ray temporal and spectral variability properties of GRBs as observed using the Swift satellite. Despitemuch individual complexity, the flux and spectral variability can be reasonably well described by a combination of twocomponents-which we denote as the prompt and the afterglow. The first, prompt component consists of the burst and itsinitial decay while the second, afterglow component fits the X-ray plateau phase and subsequent decline observed in themajority of GRBs. When strong spectral variability occurs it is associated with the prompt component while the X-ray plateauand later emission shows little if any spectral variability. We briefly compare the observations with some of the proposedmodels. Any model for the early or late emission must explain the differences in both temporal and spectral behaviour.
gamma-ray bursts
Paul OBrien Dick Willingale
Department of Physics & Astronomy,University of Leicester,UK
国际会议
2008 NanJing Gamma-Ray Burst Conference(2008年伽马暴国际研讨会)
南京
英文
13-18
2008-06-23（万方平台首次上网日期，不代表论文的发表时间）