Efficient electron heating in relativistic shocks and gamma-ray-burst afterglow.
Efficient electron heating in relativistic shocks and gamma-ray-burst afterglow.
复制标题
相对论激波和伽马射线爆发余辉中的高效电子加热。
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
D. Eichler
中科院分区：
文献类型：
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作者：
M. Gedalin;M. Balikhin;D. Eichler
激波中的电子由于交叉激波电势而被有效地激励，交叉激波电势是由于激波前沿中的磁场对电子和离子的差异偏转而产生的。电子散射必然伴随着散射和热化。该机制在磁化和非磁化的相对论性电子离子冲击中都是有效的。本文认为，γ暴余辉是由强增强磁场层中的加热电子的同步辐射引起的。
Electrons in shocks are efficiently energized due to the cross-shock potential, which develops because of differential deflection of electrons and ions by the magnetic field in the shock front. The electron energization is necessarily accompanied by scattering and thermalization. The mechanism is efficient in both magnetized and nonmagnetized relativistic electron-ion shocks. It is proposed that the synchrotron emission from the heated electrons in a layer of strongly enhanced magnetic field is responsible for gamma-ray-burst afterglows.