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

页码：689 / 692

页数：4

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