Analysis of Forbush decreases observed using a muon telescope in Antarctica starting on 21 June 2015

doi:10.1088/1674-1137/42/12/125001

CORC > 高能物理研究所 > 中国科学院高能物理研究所 > 粒子天体物理中心

	Analysis of Forbush decreases observed using a muon telescope in Antarctica starting on 21 June 2015
	Huang, De-Hong, Hu, Hong-Qiao, Zhang, Ji-Long, Lu, Hong, Zhang, Da-Li, Xue, Bin-Shen; Zhang, DL; Xue, BS; Lu, JT; Lu, H; Lu, Jing-Tian; Zhang, JL; Zhang DL(张大力); Lu H(卢红); Zhang JL(张吉龙)
刊名	CHINESE PHYSICS C
	2018
卷号	42 期号:12 页码:125001
关键词	cosmic ray muon telescope neutron monitor CME Forbush decrease
ISSN号	1674-1137
DOI	10.1088/1674-1137/42/12/125001
文献子类	Article
英文摘要	A cosmic-ray muon telescope has been collecting data since the end of 2014, which was shortly after the telescope was built in the Zhongshan Station of Antarctica. The telescope is the first observation device to be built by Chinese scientists in Antarctica. The pressure change is very strong in Zhongshan station. The count rate of the pressure correction results shows that the large variations in the count rate are likely caused by pressure fluctuations. During the period from 18 June to 22 June 2015, four halo coronal mass ejections (CMEs) were ejected from the Sun. These CMEs initiated a series of Forbush decreases (FD) when they reached the Earth. We conducted a comprehensive study of the intensity fluctuations of galactic cosmic rays recorded during FDs. The intensity fluctuations used in this study were collected by cosmic ray detectors of multiple stations (Zhongshan, McMurdo, South Polar, and Nagoya), and the solar wind measurements were collected by ACE and WIND. The profile of the FD of 22 June demonstrated a four-step decrease. The traditional one- or two-step FD classification method does not adequately explain the FD profile results. The interaction between the faster CME that occurred on 21 June 2015 and the two slow CMEs of the earlier few days should be considered. The cosmic ray intensities of the South Pole, McMurdo, and Zhongshan stations have similar hourly variations, whereas the galactic cosmic rays recorded between polar and non-polar locations are distinct. The FD pre-increase of 22 June 2015 for the Nagoya muon telescope (non-polar location) lags those of the McMurdo and Zhongshan stations (polar locations) by 1 h. The FD onset of 22 June 2015 for the Nagoya muon telescope lags those of the polar locations by 1 h.
电子版国际标准刊号	2058-6132
WOS关键词	COSMIC-RAY INTENSITY
WOS研究方向	Physics
语种	英语
CSCD记录号	CSCD:6375100
WOS记录号	WOS:000451430300017
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286903]
专题	高能物理研究所_粒子天体物理中心
通讯作者	Zhang JL(张吉龙)
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Huang, De-Hong, Hu, Hong-Qiao, Zhang, Ji-Long, Lu, Hong, Zhang, Da-Li, Xue, Bin-Shen,Zhang, DL,Xue, BS,et al. Analysis of Forbush decreases observed using a muon telescope in Antarctica starting on 21 June 2015[J]. CHINESE PHYSICS C,2018,42(12):125001.
APA	Huang, De-Hong, Hu, Hong-Qiao, Zhang, Ji-Long, Lu, Hong, Zhang, Da-Li, Xue, Bin-Shen.,Zhang, DL.,Xue, BS.,Lu, JT.,Lu, H.,...&Huang, DH.(2018).Analysis of Forbush decreases observed using a muon telescope in Antarctica starting on 21 June 2015.CHINESE PHYSICS C,42(12),125001.
MLA	Huang, De-Hong, Hu, Hong-Qiao, Zhang, Ji-Long, Lu, Hong, Zhang, Da-Li, Xue, Bin-Shen,et al."Analysis of Forbush decreases observed using a muon telescope in Antarctica starting on 21 June 2015".CHINESE PHYSICS C 42.12(2018):125001.