Gamma ray signals from dark matter: Concepts, status and prospects

被引：195
作者：
Bringmann, Torsten [1 ]
Weniger, Christoph [2 ]
机构：
[1] Univ Hamburg, Inst Theoret Phys 2, Luruper Chaussee 149, DE-22761 Hamburg, Germany
[2] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany
来源：
PHYSICS OF THE DARK UNIVERSE | 2012年 / 1卷 / 1-2期
关键词：
MILKY-WAY SATELLITES; GALACTIC-CENTER; RADIATIVE PROCESSES; ANNIHILATION; EMISSION; SEARCH; CANDIDATES; PROBE; SUBSTRUCTURE; CONSTRAINTS;
D O I：
10.1016/j.dark.2012.10.005
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Weakly interacting massive particles (WIMPs) remain a prime candidate for the cosmological dark matter (DM), even in the absence of current collider signals that would unambiguously point to new physics below the TeV scale. The self-annihilation of these particles in astronomical targets may leave observable imprints in cosmic rays of various kinds. In this review, we focus on gamma rays which we argue to play a pronounced role among the various possible messengers. We discuss the most promising spectral and spatial signatures to look for, give an update on the current state of gamma-ray searches for DM and an outlook concerning future prospects. We also assess in some detail the implications of a potential signal identification for particle DM models as well as for our understanding of structure formation. Special emphasis is put on the possible evidence for a 130 GeV line-like signal that we recently identified in the data of the Fermi gamma-ray space telescope. (C) 2012 Elsevier B.V. Open access under CC BY-NC-ND license
引用
收藏
页码：194 / 217
页数：24
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