Upper cutoff of high energy solar protons |
| |
Authors: | Dj. Heristchi G. Trottet J. Perez-Peraza |
| |
Affiliation: | (1) Observatoire de Meudon, 92190 Meudon, France |
| |
Abstract: | By studying the data from the worldwide neutron monitor network the spectra of most of the solar proton events in cycles 19–20 have been determined. These spectra are best represented by a power law with an upper cutoff Rm. This holds over a wide range in energy or rigidity. For the events examined Rm had values between 3 GV and 20 GV. It is shown that there is no correlation between Rm and the amplitude of the events.The equation describing continuous particle acceleration in a confining medium is solved in the non-stationary case. This solution shows the existence of a cutoff in the spectrum, and is compared with the experimental results in connection with the problem of particle acceleration time.Instituto de Astronomia, Universidad Nacional Autonoma de Mexico, Mexico City, Mexico. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|