Limits on source distances for the most energetic cosmic rays in intergalactic magnetic fields

被引：8

作者：

Lampard, R ^{[1
]}

Clay, RW ^{[1
]}

Dawson, BR ^{[1
]}

机构：

[1] UNIV ADELAIDE,DEPT PHYS & MATH PHYS,ADELAIDE,SA 5005,AUSTRALIA

来源：

ASTROPARTICLE PHYSICS | 1997年 / 7卷 / 03期

关键词：

attenuation of cosmic rays; cosmic microwave background; intergalactic magnetic field;

D O I：

10.1016/S0927-6505(97)00025-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The propagation of the highest energy cosmic rays through the intergalactic magnetic field is considered, including the effect of interactions with the 2.7 K microwave background. Energy loss in the microwave background due to photo-pion production limits the total distance travelled by the cosmic rays and the turbulent intergalactic held determines their total displacement. At energies above 10(20) eV, the average displacements are a few tens of megaparsecs, limiting possible sources to the volume dominated by the supergalactic plane. (C) 1997 Elsevier Science B.V.

引用

页码：213 / 218

页数：6

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