论文标题

小型磁场对加热J0250+5854极性盖的影响

The influence of small scale magnetic field on the heating of J0250+5854 polar cap

论文作者

Barsukov, D. P., Vorontsov, M. V., Morozov, I. K.

论文摘要

考虑到表面小尺度磁场对PSR J0250+5854极盖的加热的影响。假定仅通过反向正上曲加热极性帽,并在脉冲星二极管中加速。据认为,脉冲星二极管处于固定状态,较低的板块附近的恒星表面(极盖模型)占据了所有脉冲管横截面,并且在稳定空间电荷的机制下运行有限的电子流。考虑到小规模磁场对脉冲星二极管内电场的影响。为了计算电子峰值生产速率,我们仅考虑了主电子的曲率辐射及其在磁场中的吸收。假定可以在结合状态(正电子)中创建一部分电峰对。后来,这种正电子通过恒星表面的热光子进行光电离。

The influence of surface small scale magnetic field on the heating of PSR J0250+5854 polar cap is considered. It is assumed that polar cap is heated only by reverse positrons, accelerated in pulsar diode. It is supposed that pulsar diode is in stationary state with lower plate nearby the star surface (polar cap model), occupies all pulsar tube crosssection and operates in regime of steady space charge limited electron flow. The influence of small scale magnetic field on electric field inside pulsar diode is taken into account. To calculate the electron-positron pairs production rate we take into account only the curvature radiation of primary electrons and its absorption in magnetic field. It is assumed that part of electro-positron pairs may be created in bound state (positronium). And later such positroniums are photoionized by thermal photons from star surface.

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