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arXiv 1209.2282astro-ph.HE
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脉冲星高能辐射的IC模型

IC model of pulsar high energy emission

Maxim Lyutikov

摘要:

我们讨论了脉冲星高能辐射是通过逆康普顿机制产生的越来越多的证据。我们再现的宽带光谱的螃蟹脉冲星,从紫外线到非常高的能量伽马射线-近十年的能量,在回旋自康普顿模型的框架内。发射是由两个逆流光束内的外部间隙,在距离以上~ 20 NS半径。向外移动的射束通过多普勒增强器回旋加速器发射产生UV-X射线光子,并且通过康普顿散射由向内行进的射束产生的回旋加速器光子产生GeV光子。散射发生在深层克莱因-西名制度,从而IC组件提供了一个直接测量磁层内的粒子分布。所需的等离子体多重性很高,约为10^6-10^7,但与注入脉冲星风星云的平均粒子通量一致。

英文摘要:

We discuss growing evidence that pulsar high energy is emission is generated via Inverse Compton mechanism. We reproduce the broadband spectrum of Crab pulsar, from UV to very high energy gamma-rays - nearly ten decades in energy, within the framework of the cyclotron-self-Compton model. Emission is produced by two counter-streaming beams within the outer gaps, at distances above ~ 20 NS radii. The outward moving beam produces UV-X-ray photons via Doppler-booster cyclotron emission, and GeV photons by Compton scattering the cyclotron photons produced by the inward going beam. The scattering occurs in the deep Klein-Nishina regime, whereby the IC component provides a direct measurement of particle distribution within the magnetosphere. The required plasma multiplicity is high, ~ 10^6-10^7, but is consistent with the average particle flux injected into the pulsar wind nebula.

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