ON THE VERY HIGH ENERGY SPECTRUM OF THE CRAB PULSAR

被引：14
作者：
Chkheidze, N. [1 ]
Machabeli, G. [1 ]
Osmanov, Z. [1 ]
机构：
[1] Ilia State Univ, Ctr Theoret Astrophys, ITP, GE-0162 Tbilisi, Georgia
来源：
ASTROPHYSICAL JOURNAL | 2011年 / 730卷 / 02期
基金：
美国国家科学基金会;
关键词：
instabilities; plasmas; pulsars: individual (PSRB0531+21); radiation mechanisms: non-thermal; GAMMA-RAYS; EMISSION; RADIATION; PLASMA;
D O I：
10.1088/0004-637X/730/2/62
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In the present paper, we construct a self-consistent theory interpreting the observations from the MAGIC Cherenkov Telescope of the very high energy (VHE) pulsed emission from the Crab pulsar. In particular, on the basis of Vlasov's kinetic equation, we study the process of quasi-linear diffusion (QLD) developed by means of the cyclotron instability. This mechanism provides simultaneous generation of low (radio) and VHE (0.01-25 GeV) emission on light cylinder scales in one location of the pulsar magnetosphere. A different approach to the synchrotron emission is considered, giving the spectral index of the VHE emission (beta = 2) and the exponential cutoff energy (23 GeV) in good agreement with the observational data.
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页数：5
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