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Investigation of the transient cosmic ray decreases observed by voyagers in 2007: A numerical approach
Xi Luo; Ming Zhang; Xueshang Feng; J. E. Mendoza-Torres; 北京8701信箱
Department空间天气学国家重点实验室
Source PublicationJournal of Geophysical Research: Space Physics
2013
Volume118Issue:12Pages:7517-7524
ISSN2169-9402
Language英语
KeywordCosmic Rays Heliosheath
Other AbstractIn 2006 and 2007, Voyager 1 and 2 recorded a series of cosmic ray transient decrease events. It is believed that these transient decrease events are caused by the Local Merged Interaction Region (LMIR). Incorporating a LMIR model with our cosmic ray transport code, we investigate the causes for these cosmic ray transient decrease events. The simulation shows that the interaction between LMIR and termination shock (TS) affect the cosmic ray transport in the heliosheath, even if the observed location is beyond latitude extent of the LMIR. To further understand these transient decrease events observed by voyagers, we simulate a scenario of two LMIRs propagating into the heliosheath. One of the LMIRs arrived at Voyager 2 at 2007.43 and the other at 2007.55. They went further to interact with the TS at 2007.56 and 2007.76 separately, causing the cosmic ray intensity decreases observed by Voyager 1 which was about 10 AU beyond the TS.
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Version出版稿
Identifierhttp://ir.nssc.ac.cn/handle/122/1518
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
Xi Luo,Ming Zhang,Xueshang Feng,等. Investigation of the transient cosmic ray decreases observed by voyagers in 2007: A numerical approach[J]. Journal of Geophysical Research: Space Physics,2013,118(12):7517-7524.
APA Xi Luo,Ming Zhang,Xueshang Feng,J. E. Mendoza-Torres,&北京8701信箱.(2013).Investigation of the transient cosmic ray decreases observed by voyagers in 2007: A numerical approach.Journal of Geophysical Research: Space Physics,118(12),7517-7524.
MLA Xi Luo,et al."Investigation of the transient cosmic ray decreases observed by voyagers in 2007: A numerical approach".Journal of Geophysical Research: Space Physics 118.12(2013):7517-7524.
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