cosmic ray电子输运的半解析模型
Semi-analytical model of cosmic ray electron transport
摘要：
我们对Hein和Spanier（2008）提出的分析传播模型进行了数值扩展，以描述银盘中的轻子布居。该模型是用来获得一个可能的识别的组件，有助于轻子宇宙射线谱，测量PAMELA，费米和HESS，重点是次级e+ - e-生产宇宙射线粒子与环境星际介质（ISM）的碰撞。我们发现，除了secondaries，一个额外的源对称的e+和e-生产需要解释的PAMELA异常和费米凸点，假设一个幂律初级电子谱。我们的模型还允许我们导出ISM的某些属性的约束。
英文摘要：
We present a numerical extension to the analytical propagation model introduced in Hein and Spanier (2008) to describe the leptonic population in the galactic disc. The model is used to derive a possible identification of the components that contribute to the leptonic cosmic ray spectrum, as measured by PAMELA, Fermi and HESS, with an emphasis on secondary e+ - e- production in collisions of cosmic ray particles with ambient interstellar medium (ISM). We find that besides secondaries, an additional source symmetric in e+ and e- production is needed to explain both the PAMELA anomaly and the Fermi bump, assuming a power-law primary electron spectrum. Our model also allows us to derive constraints for some properties of the ISM.
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