天体物理混沌枪效应
Astrophysical chaotic gun effect
摘要：
提出了一种特殊的加速度--混沌枪效应的动力学方程。在此基础上，我们推导出了一个能描述系统失稳条件的分布函数。利用该分布函数，我们导出了同步辐射的功率谱，并证明了功率谱的幂律形式。我们证明了发射光谱的谱指数与束中带电粒子数的谱指数有关。我们的数值模拟表明，频谱有一个突破的频率阈值，混沌加速变得有效。假设这个阈值的设置上的有效混沌枪效应，我们估计的磁场强度。我们的论文主张电磁过程能够加速带电粒子从低能量开始到高能量。假设Mkn 501的高能粒子谱是由混沌枪效应的同步辐射产生的，我们估计了源的一些参数。
英文摘要：
We propose a kinetic equation for a special kind of acceleration: chaotic gun effect. Then we infer a distribution function which can depict the instability condition. With this distribution function we derive the power spectrum of the synchrotron emission and we prove the power law form of the power spectrum. We show that the spectral index of the emission spectrum is related to the spectral index of the number of the charged particles in the beam. Our numeric simulations show that the spectrum has a break at a frequency threshold where the chaotic acceleration becomes efficient. Assuming this threshold to the set on of the efficient chaotic gun effect we estimate the magnetic strength .Our paper advocates an electromagnetic process able to accelerate charged particles to high energies starting from low energies. Assuming the high-energy particles spectra of Mkn 501 to be produced by the synchrotron emission during chaotic gun effect we estimate some parameters of the source.
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