小尺度磁场对J0250 +5854极帽加热的影响
The influence of small scale magnetic field on the heating of J0250+5854 polar cap
摘要：
考虑了地球表面小尺度磁场对PSR J0250+5854极盖加热的影响。假设极帽仅由在脉冲星二极管中加速的反向正电子加热。假设脉冲星二极管处于静止状态，下极板靠近星表面（极冠模型），占据整个脉冲星管截面，工作在稳定的空间电荷限制电子流区。考虑了小尺度磁场对脉冲星二极管内部电场的影响。在计算正负电子对产生率时，我们只考虑了初级电子的曲率辐射及其在磁场中的吸收。假设部分正负电子对可以在束缚态（正电子偶素）中产生。随后这些正电子素被来自恒星表面的热光子光电离。
英文摘要：
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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