论文标题

无线电脉冲星的无效和调整的新模型

A new model for nulling and moding in radio pulsars

论文作者

Dyks, J.

论文摘要

无线电脉冲星的单个脉冲行为通常是根据无线电束的EXB漂移来解释的。结果表明,放射线区域的抗对称布置可以产生几种类型的观察到的单脉冲现象:子螺栓调制阶段的半周期跳跃,左右中间的子螺栓序列以及在核心主导和锥形主导的脉动模式之间切换。几何形状还可以产生零星和联运的无效。该模型暗示,将主脉冲和插插在PSR B0826-34中分离的射电压间隔对应于无线电梁中的方位角断裂,而不是呈圆润的断裂。

Single pulse behaviour of radio pulsars is usually interpreted in terms of the ExB drift of a radio beam. It is shown that antisymmetric arrangement of the radio-bright zones can produce several types of observed single pulse phenomena: the half-cycle jump in subpulse modulation phase, left-right-middle subpulse sequence and switching between the core-dominated and cone-dominated pulsation modes. The geometry can also produce nulling, both sporadic and intermodal. The model implies that the radio-quiet intervals that separate the main pulse and interpulse in PSR B0826-34 correspond to azimuthal breaks in the radio beam, instead of breaks in colatitude.

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