标题： 相对论性MHD喷流与伽马射线暴 显示英文标题

标题： Relativistic MHD jets and the GRBs

摘要： 高速且高度准直的等离子体束流（喷流）作为不同能量和空间尺度的天体物理源的一种普遍现象而为人所知。 天体物理喷流形成的经典MHD场景允许通过喷流磁化程度的缩放来描述不同的喷流源。 本文应用伽马射线暴参数的MHD喷流理论，并确实发现超相对论运动和强准直等主要特征可以得到解释。 其他的，如伽马射线暴的时间变异性以及双峰伽马射线暴持续时间等（目前）仍超出MHD描述的范围。 显示英文摘要

摘要： High velocity highly collimated beams of plasma -- the jets -- are known as a general phenomenon among astrophysical sources of different energy and spatial scale. The common MHD scenario of astrophysical jet formation allows to describe the different jet sources by a scaling of the jet magnetization. In this paper we apply the MHD jet theory for GRB parameters and find indeed that main features as ultra-relativistic motion and strong collimation can be explained. Others, like GRB time-variability and the bi-modal GRB duration are (yet) beyond a MHD description.