1. High Energy Processes in Clusters of Galaxies and the Origin of Cosmic Rays
- Author
-
Li Zhang, Xinyu Chi, Peter K.N. Yu, Qing-Qi Zhu, and Enoch C. M. Young
- Subjects
Physics ,Structure formation ,Astrophysics::High Energy Astrophysical Phenomena ,General Physics and Astronomy ,Astronomy ,Cosmic ray ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astrophysics ,Galaxy ,Positron ,Coma Cluster ,Intergalactic travel ,Ultra-high-energy cosmic ray ,Astrophysics::Galaxy Astrophysics ,Galaxy cluster - Abstract
We test the hypothesis of a universal cosmic ray intensity by calculating the secondary electron or positron production in the hadronic interactions of cosmic ray nuclei with intergalactic gas within clusters of galaxies. We find that the spectral characteristics of the radio synchrotron emission by these secondary electrons is not consistent with observations of the Coma cluster. Thus the hypothesis can be ruled out on cluster scales.
- Published
- 1996