Gamma rays and neutrinos from dark matter annihilation in galaxy clusters
Yuan Q(袁强); Bi XJ(毕效军); Zhang XM(张新民); Yuan, QA; Yin, PF; Bi, XJ; Zhang, XM; Zhu, SH
刊名PHYSICAL REVIEW D
2010
卷号82期号:2页码:23506
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.82.023506
通讯作者[Yuan, Qiang ; Bi, Xiao-Jun] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China ; [Yin, Peng-Fei ; Zhu, Shou-Hua] Peking Univ, Inst Theoret Phys, Beijing 100871, Peoples R China ; [Yin, Peng-Fei ; Zhu, Shou-Hua] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China ; [Bi, Xiao-Jun ; Zhu, Shou-Hua] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China ; [Zhang, Xin-Min] Chinese Acad Sci, Inst High Energy Phys, Div Theoret, Beijing 100049, Peoples R China
文章类型Article
英文摘要The gamma-ray and neutrino emissions from dark matter (DM) annihilation in galaxy clusters are studied. After about one year of operation of Fermi-LAT, several nearby clusters are reported with stringent upper limits of GeV gamma-ray emission. We use the Fermi-LAT upper limits of these clusters to constrain the DM model parameters. We find that the DM model distributed with substructures predicted in cold DM scenario is strongly constrained by Fermi-LAT gamma-ray data. Especially for the leptonic annihilation scenario which may account for the e(+/-) excesses discovered by PAMELA/Fermi-LAT/HESS, the constraint on the minimum mass of substructures is of the level 10(2)-10(3) M-circle dot, which is much larger than that expected in the cold DM picture, but is consistent with a warm DM scenario. We further investigate the sensitivity of neutrino detections of the clusters by IceCube. It is found that neutrino detection is much more difficult than gamma-rays. Only for very heavy DM (similar to 10 TeV) together with a considerable branching ratio to line neutrinos the neutrino sensitivity is comparable with that of gamma-rays.
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]Astronomy & Astrophysics ; Physics
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语种英语
WOS记录号WOS:000279819500002
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被引频次:24[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240493
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
中国科学院高能物理研究所_实验物理中心
中国科学院高能物理研究所_粒子天体物理中心
中国科学院高能物理研究所_多学科研究中心
作者单位中国科学院高能物理研究所
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Yuan Q,Bi XJ,Zhang XM,et al. Gamma rays and neutrinos from dark matter annihilation in galaxy clusters[J]. PHYSICAL REVIEW D,2010,82(2):23506.
APA 袁强.,毕效军.,张新民.,Yuan, QA.,Yin, PF.,...&Zhu, SH.(2010).Gamma rays and neutrinos from dark matter annihilation in galaxy clusters.PHYSICAL REVIEW D,82(2),23506.
MLA 袁强,et al."Gamma rays and neutrinos from dark matter annihilation in galaxy clusters".PHYSICAL REVIEW D 82.2(2010):23506.
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