NSSC OpenIR  > 空间科学部
Effects of Anomalous Cosmic Rays on the Structure of the Outer Heliosphere
Guo, Xiaocheng; Florinski, Vladimir; Wang, Chi; Guo, XC (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing 100190, Peoples R China.; Guo, XC (reprint author), Univ Chinese Acad Sci, Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China.
作者部门空间科学部
发表期刊ASTROPHYSICAL JOURNAL
2018
卷号859期号:2页码:157
ISSN0004-637X
语种英语
关键词Cosmic Rays Diffusion Magnetohydrodynamics (Mhd) Methods: Numerical Plasmas Sun: Heliosphere
摘要Based on Voyager 1 observations, some anomalous cosmic rays (ACRs) may have crossed the heliopause and escaped into the interstellar medium, providing a mechanism of energy transfer between the inner and outer heliosheaths that is not included in conventional magnetohydrodynamics (MHD) models. In this paper, we study the effect of energetic particles' escape through the heliopause on the size and shape of the heliosphere using a simple model that includes diffusive transport of cosmic rays. We show that the presence of ACRs significantly changes the heliosphere structure, including the location of the heliopause and termination shock. It was found that the heliopause would contract for certain values of the ACR diffusion coefficients when the diffusive particles' pressure is comparable to the pressure of the plasma background. The difference in Voyager 1 and 2 observations of energetic particles during their respective termination shock crossings is interpreted here as due to the differences in diffusion environments during the different phases of the solar cycle. The shorter period of enhanced ACR intensities upstream of the shock measured by Voyager 2 may have been caused by weaker radial diffusive transport compared with the time of Voyager 1 crossing. We conclude that ACR diffusive effects could be prominent and should be included in MHD models of the heliosphere.
收录类别SCI
文献类型期刊论文
条目标识符http://ir.nssc.ac.cn/handle/122/6324
专题空间科学部
通讯作者Guo, XC (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing 100190, Peoples R China.; Guo, XC (reprint author), Univ Chinese Acad Sci, Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China.
推荐引用方式
GB/T 7714
Guo, Xiaocheng,Florinski, Vladimir,Wang, Chi,et al. Effects of Anomalous Cosmic Rays on the Structure of the Outer Heliosphere[J]. ASTROPHYSICAL JOURNAL,2018,859(2):157.
APA Guo, Xiaocheng,Florinski, Vladimir,Wang, Chi,Guo, XC ,&Guo, XC .(2018).Effects of Anomalous Cosmic Rays on the Structure of the Outer Heliosphere.ASTROPHYSICAL JOURNAL,859(2),157.
MLA Guo, Xiaocheng,et al."Effects of Anomalous Cosmic Rays on the Structure of the Outer Heliosphere".ASTROPHYSICAL JOURNAL 859.2(2018):157.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
20188592157.pdf(985KB)期刊论文作者接受稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Guo, Xiaocheng]的文章
[Florinski, Vladimir]的文章
[Wang, Chi]的文章
百度学术
百度学术中相似的文章
[Guo, Xiaocheng]的文章
[Florinski, Vladimir]的文章
[Wang, Chi]的文章
必应学术
必应学术中相似的文章
[Guo, Xiaocheng]的文章
[Florinski, Vladimir]的文章
[Wang, Chi]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。