Annihilation radiation from a dark matter spike at the Galactic Centre

被引：83

作者：

Bertone, G ^{[1
]}

Sigl, G

Silk, J

机构：

[1] Inst Astrophys, F-75014 Paris, France

[2] Univ Oxford, Dept Astrophys, Oxford OX1 3RH, England

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2002年 / 337卷 / 01期

关键词：

Galaxy : centre; dark matter;

D O I：

10.1046/j.1365-8711.2002.05892.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study annihilation radiation of neutralinos in the Galactic Centre, assuming the existence of a 'spike' in the dark matter density profile, caused by adiabatic accretion on to the massive black hole lying at the Galactic Centre. Under this assumption we find that it is possible to reproduce the observed SgrA* emission at radio and gamma-ray frequencies in a consistent scenario with a magnetic field close to the equipartition strength and with values of gamma (the density profile power-law index) around 0.1.

引用

页码：98 / 102

页数：5

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