On the energy spectrum of relativistic electrons in the Crab Nebula
On the energy spectrum of relativistic electrons in the Crab Nebula
复制标题
蟹状星云中相对论电子的能谱
DOI：
10.1086/152252
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发表时间：
1973
期刊：
影响因子：
--
通讯作者：
E. Tademaru
中科院分区：
文献类型：
--
作者：
E. Tademaru
Sturreck的脉冲星模型预测脉冲星可能是大量相对论电子和正电子的来源，这些电子和正电子是由高能r射线在脉冲星的强磁场中的光子衰变产生的。对该模型进行了详细的研究，得到了粒子的能谱。发现轻度相对论性电子的能谱指数为3/2，这在一定程度上与必须注入蟹状星云的电子的能谱指数一致，从而通过同步辐射获得观测到的无线电频谱。此外，它们的数量足以解释蟹状星云的整体能量。次级粒子的能量足以解释光学发射，但不能解释通过同步加速器的x射线通量。然而，它们的数量和光谱强烈地表明，它们可能是在x射线辐射之前加速到更高能量的种子粒子。(认证)
A model of pulsars by Sturreck predicts that pulsars may be sources of large numbers of relativsitic electrons and positrons created by photon decay of high-energy r-rays in the strong magnetic fields of the pulsars. This model is investigated in detail to obtain the energy spectrum of the particles. An energy spectral index of 3/2 is found for the mildly relativistic electrons, which is in extent agreement with the spectral index of electrons that must be injected into the Crab Nebula to give the observed radio spectrum via synchrotron radiation. Further, their number is sufficient to explain the overall energeties of the Crab Nebula. The energies of the secondary particles are sufficient to explainthe optical emission, but not the X-ray flux, via a synchrotron preceas. However, their number aad spectrum strongly suggest that they may be the seed particles that arm accelerated to higher energies before radiation X-rays. (auth)