脉冲星死亡线重访-- II。《死亡谷》
Pulsar death line revisited -- II. 'The death valley'
摘要：
本文分析了在$P$ - ${\dot P}$图中决定射电脉冲星“死亡谷”宽度的参数。本文利用文献I中确定的磁极帽上最大电位降的精确表达式和相应的二次等离子体产生阈值，详细分析了在考虑所有可能参数的情况下观测到的等离子体分布（中子星的半径$R$和转动惯量$I_{\rm r}$，在$γ$ -量子能量分布中的高能尾部产生次级粒子等）这可能会扩大“死亡线”。我们表明，所有这些影响的一致津贴导致足够宽的“死亡谷”包含所有观察到的中子星，即使是偶极磁场的中子星。
英文摘要：
In this paper, which is the second in a series of papers, we analyse what parameters can determine the width of the radio pulsar 'death valley' in the $P$-${\dot P}$ diagram. Using exact expression for the maximum potential drop, which can be realised over magnetic polar caps and the corresponding threshold for the secondary plasma production determined in Paper I, we analyse in detail the observed distribution of pulsars taking into account all the possible parameters (radius $R$ and moment of inertia of a neutron star $I_{\rm r}$, high-energy tail in the $γ$-quanta energy distribution giving rise to secondary particles, etc.) which could broaden 'the death line'. We show that the consistent allowance for all these effects leads to a sufficiently wide of 'the death valley' containing all the observed pulsars even for dipole magnetic field of a neutron star.
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