Clumpy cold dark matter and biological extinctions

被引:46
作者
Collar, JI [1 ]
机构
[1] UNIV PARIS 06,UA 17 CNRS,GRP PHYS SOLIDES,F-75251 PARIS 05,FRANCE
关键词
D O I
10.1016/0370-2693(95)01469-1
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Cosmological models with cosmic string and texture seeded universes predict a present abundance of very dense clumps of Cold Dark Matter particles. Their crossing through the solar system would induce a non-negligible amount of radiation damage to all living tissue; the severity of such an episode is assessed. The estimated frequency of these crossings agrees with the apparent periodicity of the paleontological record of biological extinctions.
引用
收藏
页码:266 / 269
页数:4
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