GMF model dependence of correlations between BL Lacs and ultra high energy cosmic rays

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	GMF model dependence of correlations between BL Lacs and ultra high energy cosmic rays
	Cao, Z 1,2; Dai, BZ3 ; Yang, JP1,3,4 ; Zhang L(张力)3,5
刊名	ASTROPARTICLE PHYSICS
	2007-09
卷号	28 期号:1 页码:82-88
关键词	ultrahigh energy cosmic rays BL lacertae objects magnetic field
ISSN号	0927-6505
通讯作者	Cao, Z (reprint author), Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 10039, Peoples R China.
产权排序	第五完成单位
英文摘要	Some studies suggested that there exists a correlation between locations of BL Lacertae objects (BL Lacs) and arrival directions of ultra high energy cosmic rays (UHECRs). Especially by assuming the primary particles charged +1 and using a galactic magnetic field (GMF) model to calculate deflections of the UHECRs, the significance of correlation can be improved. A new GMF model is constructed by incorporating all progresses in the GMF measurements in recent years and use it to a thorough study of the deflections of the UHECRs measured by the AGASA experiment. Compared with other models, the GFM model dependence of the correlation between the LTHECRs and the selected BL Lacs is studied. It turns out that only specific one of those GMF models makes the correlation significant, even if the GMF models are not very different. The UHECR deflections are also different depending on which GMF model is used. It indicates that the significance of the correlation, suggested in those studies, is strongly depending on GMF models. Great improvement in statistics may help to suppress the sensitivity to GMF models. (C) 2007 Elsevier B.V. All rights reserved.
学科主题	Astronomy & Astrophysics ; Physics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]	Astronomy & Astrophysics ; Physics
关键词[WOS]	GALACTIC MAGNETIC-FIELD ; SMALL-SCALE ANISOTROPY ; PULSAR ROTATION MEASURES ; RESOLUTION FLYS EYE ; GALAXY ; PROPAGATION ; SPECTRUM ; LACERTAE ; OBJECTS ; DISK
收录类别	SCI ; EI
原文出处	http://www.sciencedirect.com/science/article/pii/S092765050700059X
语种	英语
WOS记录号	WOS:000250355200007
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4215]
专题	云南天文台_其他
作者单位	1.Key Laboratory for Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 10039, PR China 2.Department of Physics, University of Utah, Salt Lake City, UT 84112, USA 3.Department of Physics, Yunnan University, Kunming 650091, PR China 4.Yunnan Agricultural University, Kunming 650201, PR China 5.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, PR China
推荐引用方式 GB/T 7714	Cao, Z,Dai, BZ,Yang, JP,et al. GMF model dependence of correlations between BL Lacs and ultra high energy cosmic rays[J]. ASTROPARTICLE PHYSICS,2007,28(1):82-88.
APA	Cao, Z,Dai, BZ,Yang, JP,&Zhang L.(2007).GMF model dependence of correlations between BL Lacs and ultra high energy cosmic rays.ASTROPARTICLE PHYSICS,28(1),82-88.
MLA	Cao, Z,et al."GMF model dependence of correlations between BL Lacs and ultra high energy cosmic rays".ASTROPARTICLE PHYSICS 28.1(2007):82-88.