NAOC Open IR  > 星系宇宙学研究部
Constraints on ultracompact minihalos from extragalactic gamma-ray background
Yang, Yupeng1,2,3; Feng, Lei1,3; Huang, Xiaoyuan2; Chen, Xuelei2; Lu, Tan3,4; Zong, Hongshi1,3
2011-12-01
发表期刊JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
期号12
摘要It has been proposed that ultracompact minihalos (UCMHs) might be formed in earlier epoch. If dark matter consists of Weakly Interacting Massive Particles (WIMPs), UCMHs can be treated as the gamma-ray sources due to dark matter annihilation within them. In this paper, we investigate the contributions of UCMHs formed during three phase transitions (i.e., electroweak symmetry breaking, QCD confinement and e(+)e(-) annihilation) to the extragalactic gamma-ray background. Moreover, we use the Fermi-LAT observation data of the extragalactic gamma-ray background to get the constraints on the current abundance of UCMHs produced during these phase transitions. We also compare these results with those obtained from Cosmic Microwave Background (CMB) observations and find that the constraints from the Fermi-LAT are more stringent than those from CMB.
关键词Dark Matter Theory Gamma Ray Theory Cosmological Parameters From Cmbr
DOI10.1088/1475-7516/2011/12/020
收录类别SCI
语种英语
WOS记录号WOS:000299199300020
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/7912
专题星系宇宙学研究部
作者单位1.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
3.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China
4.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714
Yang, Yupeng,Feng, Lei,Huang, Xiaoyuan,et al. Constraints on ultracompact minihalos from extragalactic gamma-ray background[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2011(12).
APA Yang, Yupeng,Feng, Lei,Huang, Xiaoyuan,Chen, Xuelei,Lu, Tan,&Zong, Hongshi.(2011).Constraints on ultracompact minihalos from extragalactic gamma-ray background.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(12).
MLA Yang, Yupeng,et al."Constraints on ultracompact minihalos from extragalactic gamma-ray background".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .12(2011).
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Yang, Yupeng]的文章
[Feng, Lei]的文章
[Huang, Xiaoyuan]的文章
百度学术
百度学术中相似的文章
[Yang, Yupeng]的文章
[Feng, Lei]的文章
[Huang, Xiaoyuan]的文章
必应学术
必应学术中相似的文章
[Yang, Yupeng]的文章
[Feng, Lei]的文章
[Huang, Xiaoyuan]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。