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arXiv 1012.3275astro-ph.HE
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蟹状星云脉冲星的甚高能谱

On the very high energy spectrum of the Crab pulsar

N. Chkheidze, G. Machabeli, Z. Osmanov

摘要:

在本文中,我们建立了一个自洽的理论,解释的观测魔术切伦科夫望远镜的甚高能量(VHE)脉冲辐射的蟹状星云脉冲星。特别地,在Vlasov动力学方程的基础上,我们研究了由回旋不稳定性引起的准线性扩散(QLD)过程。这种机制提供了同时产生低(无线电)和VHE(0.01- 25 GeV)的光柱尺度上的发射,在脉冲星磁层的一个位置。考虑了同步加速器理论的一种不同的方法,给出了VHE辐射的光谱指数($β=2$)和指数截止能量(23 GeV),与观测数据符合得很好。

英文摘要:

In the present paper we construct a self-consistent theory, interpreting the observations of the MAGIC Cherenkov Telescope of the very high energy (VHE) pulsed emission from the Crab pulsar. In particular, on the basis of the Vlasov's kinetic equation we study the process of the quasi-linear diffusion(QLD) developed by means of the cyclotron instability. This mechanism provides simultaneous generation of low (radio) and VHE (0.01-25GeV) emission on the light cylinder scales, in one location of the pulsar magnetosphere. A different approach of the synchrotron theory is considered, giving the spectral index of VHE emission ($β=2$) and the exponential cutoff energy (23 GeV) in a good agreement with the observational data.

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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