Radiation from a relativistic Poynting jet: some general considerations
Radiation from a relativistic Poynting jet: some general considerations
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DOI：
10.1093/mnras/stv1696
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发表时间：
2015-09
影响因子：
4.8
通讯作者：
Pawan Kumar;P. Crumley
中科院分区：
文献类型：
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作者：
Pawan Kumar;P. Crumley
我们提供了当相对论性、高度磁化的射流中的磁场消散并且粒子根据一般考虑加速时产生的辐射通量和最大频率的估计。我们还根据观测到的通量提供了对射流洛伦兹因子和磁化参数的限制。此外，利用电磁张量产生的标量的洛伦兹不变性，我们提供了对粒子加速度的约束以及出射辐射的一般特征。我们发现峰值以下的频谱随着频率的降低而软化。这种光谱特征可能是识别磁射流的一种方法。
We provide estimates for the flux and maximum frequency of radiation produced when the magnetic field in a relativistic, highly magnetized, jet is dissipated and particles are accelerated using general considerations. We also provide limits on the jet Lorentz factor and magnetization parameter from the observed flux. Furthermore, using the Lorentz invariance of scalar quantities produced with electromagnetic tensor, we provide constraints on particle acceleration, and general features of the emergent radiation. We find that the spectrum below the peak softens with decreasing frequency. This spectral feature might be one way of identifying a magnetic jet.