银河宇宙线的起源和初级质子谱

本文采用无界银河系的爆发点源各向同性弥散的模型研究了初级质子的输运方程.用加速器实验得到的P-P碰撞截面的最新资料和一个合理的扩散系数, 得到了该方程的解, 进而讨论了该解的一些特点以及诸多类似点源对地球附近质子谱的可能贡献.该模型所预期的质子谱能较好地说明实验结果. 

The Origin of Galactic Protons and the Spectrum of Primary Protons

By using an isotropic diffusion statistic model with explosive discrete sources in an infinite galaxy, the transport equation for galactic cosmic ray proton is investigated. The non-steady state solution of the equation is obtained utilizing the very recent data of cross-section of P-Pinteraction and a reasonable diffusion coefficient. Then some features of the solution and the possible contribution to the proton spectrum from lots of this kind of sources are discussed. The expected spectrum can account for the experimental data quite well.