Is the large-scale sidereal anisotropy of the galactic cosmic-ray intensity really instable at TeV energies?

doi:10.1016/j.astropartphys.2012.06.005

	Is the large-scale sidereal anisotropy of the galactic cosmic-ray intensity really instable at TeV energies?
	Amenomori, M.2; Bi, X. J.3; Chen, D.4; Chen, W. Y.3; Cui, S. W.5; Danzengluobu 6; Ding, L. K.3; Ding, X. H.6; Feng, C. F.7; Feng, Zhaoyang 3
刊名	ASTROPARTICLE PHYSICS
	2012-08-01
卷号	36 页码:237-241
关键词	Sidereal Cosmic-ray Anisotropy Tev Loss-cone
ISSN号	0927-6505
DOI	10.1016/j.astropartphys.2012.06.005
文献子类	Article
英文摘要	The sidereal cosmic-ray anisotropy at TeV energies has a large-scale deficit region distributed between 150 and 240 degrees in right ascension, which is called the "loss-cone". The Milagro experiment reported the detection of a steady increase in the loss-cone amplitude at 6 TeV from July 2000 to July 2007. In this paper, we examine Milagro's claim using the data collected by the Tibet air-shower experiment from November 1999 through December 2008. No time dependence was found in the loss-cone amplitude at 4.4, 6.2, and 11 TeV. If the increase in the loss-cone amplitude were, as Milagro argued, due to variations in the heliosphere in relation to solar activities, the same tendency would be seen at sub-TeV energies where the anisotropy is far more sensitive to solar activities. At 0.6 TeV, however, Matsushiro underground muon observatory reported no significant increase in the loss-cone amplitude during the corresponding period. (C) 2012 Elsevier B.V. All rights reserved.
WOS关键词	AIR-SHOWER ARRAY ; GAMMA-RAYS ; CRAB-NEBULA ; GALAXY ; PROPAGATION
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000309787000027
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/47771]
专题	中国科学院近代物理研究所
通讯作者	Sako, T. K.
作者单位	1.Yokohama Natl Univ, Fac Engn, Yokohama, Kanagawa 2408501, Japan 2.Hirosaki Univ, Dept Phys, Hirosaki, Aomori 0368561, Japan 3.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China 4.Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan 5.Hebei Normal Univ, Dept Phys, Shijiazhuang 050016, Peoples R China 6.Tibet Univ, Dept Math & Phys, Lhasa 850000, Peoples R China 7.Shandong Univ, Dept Phys, Jinan 250100, Peoples R China 8.SW Jiaotong Univ, Inst Modern Phys, Chengdu 610031, Peoples R China 9.Kanagawa Univ, Fac Engn, Yokohama, Kanagawa 2218686, Japan 10.Utsunomiya Univ, Fac Educ, Utsunomiya, Tochigi 3218505, Japan
推荐引用方式 GB/T 7714	Amenomori, M.,Bi, X. J.,Chen, D.,et al. Is the large-scale sidereal anisotropy of the galactic cosmic-ray intensity really instable at TeV energies?[J]. ASTROPARTICLE PHYSICS,2012,36:237-241.
APA	Amenomori, M..,Bi, X. J..,Chen, D..,Chen, W. Y..,Cui, S. W..,...&Zhou, X. X..(2012).Is the large-scale sidereal anisotropy of the galactic cosmic-ray intensity really instable at TeV energies?.ASTROPARTICLE PHYSICS,36,237-241.
MLA	Amenomori, M.,et al."Is the large-scale sidereal anisotropy of the galactic cosmic-ray intensity really instable at TeV energies?".ASTROPARTICLE PHYSICS 36(2012):237-241.