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arXiv 2102.12417astro-ph.HE
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非磁脉冲星发射机制

Non-magnetic Pulsar Emission Mechanism

Nikolay Kamardin

摘要:

一般认为,脉冲星的磁场将其大部分旋转能量损失转化为辐射。在本文中,我们提出了另一种发射机制,其中既不涉及脉冲星的旋转能量,也不涉及其磁场。这里提出的发射机制是基于这样的假设,即脉冲星物质只有在相对于周围介质以超过某个阈值的速度运动时才是稳定的。速度降低到这个阈值以下会导致物质衰变并发射电磁辐射。结果表明,在简单的驱动条件下,脉冲星表面形成了脉冲星粒子速度下降到任意小值的衰减区。它还表明,对于大多数的观测器已测量的横向速度,这样的条件是很可能的。因此,脉冲星辐射带走的不是脉冲星的转动能量,而是它的质量,而转动能量的大小不起任何作用。在文章的最后,我们讨论了脉冲星可能发生短周期进动的原因。

英文摘要:

It is generally accepted that the pulsar magnetic field converts most of its rotational energy losses into radiation. In this paper, we propose an alternative emission mechanism, in which neither the pulsar rotational energy nor its magnetic field is involved. The emission mechanism proposed here is based on the hypothesis that the pulsar matter is stable only when moving with respect to the ambient medium at a velocity exceeding some threshold value. A decrease in velocity below this threshold value leads to the decay of matter with the emission of electromagnetic radiation. It is shown that decay regions on the pulsar surface in which the velocities of pulsar particles drops to arbitrarily small values are formed under simple driving condition. It is also shown that for the majority of pulsars having measured transverse velocities, such a condition is quite possible. Thus, the pulsar radiation carries away not the pulsar rotational energy, but its mass, while the magnitude of the rotational energy does not play any role. At the end of the paper, we consider the reason for the possible short-period precession of the pulsar.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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