VERITAS Limits on Dark Matter Annihilation from Dwarf Galaxies

被引:4
|
作者
Grube, J. [1 ]
机构
[1] Adler Planetarium, Dept Astron, Chicago, IL 60605 USA
来源
HIGH ENERGY GAMMA-RAY ASTRONOMY | 2012年 / 1505卷
关键词
dark matter; gamma-rays; PARTICLE;
D O I
10.1063/1.4772353
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Current cosmological models and data suggest the existence of a Cold Dark Matter (DM) component, however the nature of DM particles remains unknown. A favored candidate for DM is a Weakly Interacting Massive Particle (WIMP) in the mass range from 50 GeV to greater than 10 TeV. Nearby dwarf spheroidal galaxies (dSph) are expected to contain a high density of Dark Matter with a low gamma-ray background, and are thus promising targets for the detection of secondary gamma rays at very high energies (VHE, E > 0.1 TeV) through the annihilation of WIMPS into SM particles. Presented here are recent VERITAS observations of dSph, including a deep exposure on Segue 1. Limits are derived for various annihilating and decaying dark matter particle models.
引用
收藏
页码:689 / 692
页数:4
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