Searching for light from a dark matter clump

被引:7
|
作者
Ghosh, Tathagata [1 ]
Kumar, Jason [1 ]
Marfatia, Danny [1 ]
Sandick, Pearl [2 ]
机构
[1] Univ Hawaii, Dept Phys & Astron, 2505 Correa Rd,Watanabe 416, Honolulu, HI 96822 USA
[2] Univ Utah, Dept Phys & Astron, 201 James Fletcher Bldg,115 South 1400 East, Salt Lake City, UT 84112 USA
关键词
gamma ray theory; cosmic ray theory; dark matter theory;
D O I
10.1088/1475-7516/2018/08/023
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The DAMPE experiment has recently reported an electron spectrum that can be explained by dark matter annihilation into charged lepton pairs in a nearby dark matter clump. The accompanying bremsstrahlung may yield a gamma-ray excess with a known spectral shape that extends over an angular scale of O(10 degrees). We show that such an excess is not present in Fermi-LAT data.
引用
收藏
页数:10
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