Gamma-ray anisotropies from decaying dark matter

被引:0
作者
Weniger, C. [1 ]
机构
[1] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany
来源
COSMIC RAYS FOR PARTICLE AND ASTROPARTICLE PHYSICS | 2011年 / 6卷
关键词
POSITRON;
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中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Many theoretically well-motivated models predict the decay of dark matter with lifetimes much longer than the age of the universe. This can potentially lead to peculiar features in the observed cosmic-ray fluxes. In particular the gamma-ray channel, which carries directional information, is promising for dark matter searches, since it is sensitive to the underlying source distribution. We will discuss the peculiar dipole-like anisotropy of prompt gamma-ray radiation from dark matter decay inside our galaxy, as well as the angular power-spectrum of gamma-rays from dark matter decay outside of our galaxy. We will comment on the experimental detectability of such anisotropies.
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页码:632 / 640
页数:9
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