Cosmic rays and cosmic strings

被引:11
作者
Chi, Xinyu [1 ]
Dahanayake, Charles [1 ]
Wdowczyk, Jerzy [1 ]
Wolfendale, Arnold W. [1 ]
机构
[1] Univ Durham, Dept Phys, Durham DH1 3LE, England
关键词
D O I
10.1016/0927-6505(92)90013-P
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
It has been suggested that the highest-energy cosmic rays might be protons resulting from collapsing cosmic strings in the Universe. We point out that this mechanism, although attractive, has important shortcomings, notably the fact that gamma rays produced along with the protons and those produced by the protons in their interactions with the cosmic background radiation generate cascades in the Universe and result in unacceptably high fluxes of cosmic gamma rays in the region of hundreds of MeV.
引用
收藏
页码:129 / 131
页数:3
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