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, Hui; Guo, Jianpeng; Wang, Zehao; Lin, Haibo; Zheng, Jianchuan; Cui, Jun; Xu, Xiaojun; Wang, Yang; Feng, Xueshang; Wei, Yong |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2019 |
| 卷号 | 879期号:2页码:118 |
| 关键词 | shock waves solar wind Sun: heliosphere |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/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. |
| 语种 | 英语 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/7246]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 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):118. |
| 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),118. |
| MLA | Huang, Hui,et al."Properties of Stream Interactions and Their Associated Shocks near 1.52 au: MAVEN Observations".ASTROPHYSICAL JOURNAL 879.2(2019):118. |
入库方式： OAI收割
来源：国家空间科学中心
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