标题： 脉冲星蟹的对产生 显示英文标题

标题： On Pair Production in the Crab Pulsar

摘要： 我们考虑一种普遍的假设，即相干脉冲星射电辐射基于扩展的正负电子对产生，导致等离子体密度远高于Goldreich-Julian密度。 我们以一个例子说明，蟹状星云脉冲星观测到的低频（160 MHz）辐射与扩展的正负电子对产生模型不兼容。 我们的结果排除了显著的正负电子对产生，如果等离子体过程负责相干性，并且射电辐射起源于光速圆柱体内。 显示英文摘要

摘要： We consider the widespread assumption that coherent pulsar radio emission is based on extended pair production leading to plasma densities highly exceeding the Goldreich-Julian density. We show as an example that the observed low frequency (160 MHz) emission of the Crab pulsar is incompatible to the model of extended pair production. Our results rule out significant pair production if a plasma process is responsible for coherence and the radio emission originates from inside the light cylinder.