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Properties of Stream Interactions and Their Associated Shocks near 1.52 au: MAVEN Observations

文献类型：期刊论文

作者Huang, Hui1; Guo, Jianpeng1,2,3,4; Wang, Zehao2,5; Lin, Haibo1; Zheng, Jianchuan6; Cui, Jun7; Xu, Xiaojun8; Wang, Yang9; Feng, Xueshang2; Wei, Yong4,5
刊名ASTROPHYSICAL JOURNAL
出版日期2019-07-10
卷号879期号:2页码:13
ISSN号0004-637X
关键词shock waves solar wind Sun: heliosphere
DOI10.3847/1538-4357/ab25e9
英文摘要The measurements from the Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft are analyzed for the basic properties of solar wind stream interaction regions (SIRs) and their associated shocks at 1.52 au, as well as the evolution of SIRs from 1 to 1.52 au. A total of 149 SIRs are identified during the period from 2014 October to 2018 November, and 126 SIRs with high-quality data are selected for this study. The average occurrence rate of SIRs at 1.52 au is 36.3 yr(-1), which is comparable to but slightly higher than that (32.4 yr(-1)) at 1 au, meaning that most SIRs are well formed at 1 au. The average duration of SIRs at 1.52 au is about 37.0 hr, comparable to that at 1 au (36.73 hr), indicating that SIRs have not yet expanded more rapidly as they are convected to 1.52 au. The maximum magnetic field strength and pressure of SIRs decrease significantly from 1 to 1.52 au. The shock association rates of SIRs increase from 20.3% to 33.3% or higher as SIRs evolve from 1 to 1.52 au. The forward shocks tend to occur twice more frequently than the reverse shocks. About 75% of shocks at 1.52 au are quasi-perpendicular shocks. The strength of the shocks becomes weaker and the average shock speed remains almost unchanged from 1 to 1.52 au. These results will help us understand the solar wind conditions at Mars and their potential impact on the Martian space environment.
WOS关键词LARGE HELIOCENTRIC DISTANCES ; INTERACTION REGIONS ; SOLAR ; EVOLUTION ; PIONEER-10
资助项目National Natural Science Foundation of China (NSFC)[41674147] ; Fundamental Research Funds for the Central Universities[2017NT13] ; Specialized Research Fund for State Key Laboratories ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories[KLSA201802] ; NSFC[41861164026] ; NSFC[41731067] ; NSFC[41531073] ; NSFC[41525015] ; NSFC[41774186] ; NSFC[41525016]
WOS研究方向Astronomy & Astrophysics
语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000475635000002
资助机构National Natural Science Foundation of China (NSFC) ; Fundamental Research Funds for the Central Universities ; Specialized Research Fund for State Key Laboratories ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; NSFC ; National Natural Science Foundation of China (NSFC) ; Fundamental Research Funds for the Central Universities ; Specialized Research Fund for State Key Laboratories ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; NSFC ; National Natural Science Foundation of China (NSFC) ; Fundamental Research Funds for the Central Universities ; Specialized Research Fund for State Key Laboratories ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; NSFC ; National Natural Science Foundation of China (NSFC) ; Fundamental Research Funds for the Central Universities ; Specialized Research Fund for State Key Laboratories ; Collaborating Research Program of CAS Key Laboratory of Solar Activity, National Astronomical Observatories ; NSFC
源URL[http://ir.iggcas.ac.cn/handle/132A11/92659]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Guo, Jianpeng
作者单位1.Beijing Normal Univ, Dept Astron, Planetary & Space Phys Grp, Beijing 100875, Peoples R China
2.Chinese Acad Sci, State Key Lab Space Weather, NSSC, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
5.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
6.Shenzhen Natl Climate Observ, Shenzhen Astron Observ, Shenzhen 518040, Peoples R China
7.Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai 519082, Peoples R China
8.Macau Univ Sci & Technol, State Key Lab Lunar & Planetary Sci, Macau, Peoples R China
9.Harbin Inst Technol, Sch Sci, Shenzhen 518055, Peoples R China
推荐引用方式
GB/T 7714		 Huang, Hui,Guo, Jianpeng,Wang, Zehao,et al. Properties of Stream Interactions and Their Associated Shocks near 1.52 au: MAVEN Observations[J]. ASTROPHYSICAL JOURNAL,2019,879(2):13.
APA Huang, Hui.,Guo, Jianpeng.,Wang, Zehao.,Lin, Haibo.,Zheng, Jianchuan.,...&Wan, Weixing.(2019).Properties of Stream Interactions and Their Associated Shocks near 1.52 au: MAVEN Observations.ASTROPHYSICAL JOURNAL,879(2),13.
MLA Huang, Hui,et al."Properties of Stream Interactions and Their Associated Shocks near 1.52 au: MAVEN Observations".ASTROPHYSICAL JOURNAL 879.2(2019):13.

入库方式： OAI收割

来源：地质与地球物理研究所

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