Annihilations from the galactic centre

被引：0
|
作者：
Bertone, G [1 ]
Silk, J [1 ]
Sigl, G [1 ]
机构：
[1] Univ Oxford, Dept Astrophys, Oxford OX1 3RH, England
来源：
IDENTIFICATION OF DARK MATTER | 2001年
关键词：
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A massive black hole is present at the centre of our galaxy and inevitably accretes dark matter particles, creating a region of very high particle density. The annihilation rate is enhanced with a large number of e(+)e(-) pairs produced either directly or by sucessive decays of mesons. We evaluate the synchrotron emission (and self-absorption) associated with the propagation of these particles through the galactic magnetic field and give constraints on the values of mass and cross section of the dark matter particles.
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页码：311 / 317
页数：7
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