Polarization in the prompt emission of gamma-ray bursts and their afterglows
Polarization in the prompt emission of gamma-ray bursts and their afterglows
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DOI：
10.1088/1367-2630/8/8/131
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发表时间：
2006-07
影响因子：
3.3
通讯作者：
D. Lazzati
中科院分区：
文献类型：
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作者：
D. Lazzati
同步加速器辐射被认为是在瞬发阶段和余辉阶段产生伽马射线爆发光子的主要发射机制。偏振是同步加速器辐射的一个特征，它的研究可以揭示有关磁场特性和伽马射线爆发喷流能量分布的大量信息。在本文中，我将回顾伽马射线暴偏振的理论和观测。虽然这个理论已经很成熟，但由于信号微弱，观测被证明很难进行。然而，偏振观测的辨别能力不能被高估。
Synchrotron radiation is considered the dominant emission mechanism in the production of gamma-ray burst photons in the prompt as well as in the afterglow phase. Polarization is a characteristic feature of synchrotron radiation and its study can reveal a wealth of information on the properties of the magnetic field and of the energy distribution in gamma-ray burst jets. In this paper, I will review the theory and observations of gamma-ray burst polarization. While the theory is well established, observations have proven difficult to perform, due to the weakness of the signal. The discriminating power of polarization observations, however, cannot be overestimated.