【摘要】 本文作者用相对论电子束在等离子体中运动时的色散关系讨论了纵向传播的波模的稳定性，发现静电Ｌａｎｇｍｕｉｒ波和Ａｌｆｖｅｎ波是不稳定的，并计算了其增长率，而高频电磁模和哨声模是稳定的，相对论电子束激发的Ｌａｎｇｍｕｉｒ波和Ａｌｆｖｅｎ波的不稳定性可用于解释射电喷流中相间的热斑、粒子再加速、辐射机制以及能量传输问题。更多还原

【Abstract】 The stabilities of wave modes travelling along the magnetic field are discussed based on plasma dispersion relation with relativistic electron beams.It is found that statical langmuir wave and Alfven wave are unstable, but high frequency electromagnetic modes and whistle mode are stable. Langmuir wave and fire-hose instability of Alfven wave can be used to explain the turn on hotspots, particle reaccelaration,radiation machenism and energy transport problem.更多还原