中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 国家天文台
  3. 中国科学院国家天文台
The Relationship Between Photoelectron Boundary and Steep Electron Density Gradient on Mars: MAVEN Observations

文献类型：期刊论文

作者Han, Qianqian1,2,3; Fan, Kai1,2,3,4; Cui, Jun5,6; Wei, Yong2,3,7; Fraenz, Markus4; Dubinin, Eduard4; Chai, Lihui2,3; Rong, Z. J.2,3; Wan, Weixing2,3; Andersson, Laila8
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2019-10-23
页码8
ISSN号2169-9380
关键词Mars photoelectron boundary steep electron density gradient
DOI10.1029/2019JA026739
英文摘要The Martian ionopause is generally identified as a steep electron density gradient and the peak of photoelectrons near 27 eV. However, it is not clear whether these two criteria identify the same position in the Martian ionopause region. The Mars Atmosphere and Volatile Evolution Mission (MAVEN) provides a good chance to compare both criteria for the first time with electron density data taken from the Langmuir probe and electron energy spectra from the Solar Wind Electron Analyzer. We identified 1,121 steep electron density gradients and 4,275 photoelectron boundary crossings within the first 2.7 years of MAVEN data. Observations show that two boundaries are nearly collocated when being observed simultaneously (about 15% of the available dataset). But when averaged over all observations, the photoelectron boundary locates higher than the steep electron density gradient. This may suggest a strong dependency of the Martian ionopause on magnetic field configuration in the Martian ionosphere. Results are generally consistent with previous observations made by Mars Express (MEX) and improve our understanding of the Martian ionosphere.
WOS关键词SOLAR-WIND INTERACTION ; CRUSTAL MAGNETIC-FIELD ; MARTIAN IONOSPHERE ; RADAR SOUNDINGS ; ENERGY PEAKS ; 1ST ; MHD ; IONOPAUSE ; ASPERA-3 ; VENUS
资助项目NASA through the Mars Exploration Program ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA17010201] ; National Science Foundation of China[41525016] ; National Science Foundation of China[41525015] ; National Science Foundation of China[41661164034] ; National Science Foundation of China[41621063] ; National Science Foundation of China[41621004] ; Thousand Young Talents Program of China
WOS研究方向Astronomy & Astrophysics
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000491681000001
资助机构NASA through the Mars Exploration Program ; NASA through the Mars Exploration Program ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Science Foundation of China ; National Science Foundation of China ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China ; NASA through the Mars Exploration Program ; NASA through the Mars Exploration Program ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Science Foundation of China ; National Science Foundation of China ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China ; NASA through the Mars Exploration Program ; NASA through the Mars Exploration Program ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Science Foundation of China ; National Science Foundation of China ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China ; NASA through the Mars Exploration Program ; NASA through the Mars Exploration Program ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Science Foundation of China ; National Science Foundation of China ; Thousand Young Talents Program of China ; Thousand Young Talents Program of China
源URL[http://ir.bao.ac.cn/handle/114a11/28208]  
专题中国科学院国家天文台
通讯作者Wei, Yong
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
4.Max Planck Inst Solar Syst Res, Gottingen, Germany
5.Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai, Peoples R China
6.Chinese Acad Sci, Natl Astron Observ, Key Lab Lunar & Deep Space Explorat, Beijing, Peoples R China
7.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China
8.Univ Colorado, LASP, Boulder, CO 80309 USA
9.Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA
10.NASA, Planetary Magnetospheres Lab, Solar Syst Explorat Div, Goddard Space Flight Ctr, Greenbelt, MD USA
推荐引用方式
GB/T 7714		 Han, Qianqian,Fan, Kai,Cui, Jun,et al. The Relationship Between Photoelectron Boundary and Steep Electron Density Gradient on Mars: MAVEN Observations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2019:8.
APA Han, Qianqian.,Fan, Kai.,Cui, Jun.,Wei, Yong.,Fraenz, Markus.,...&Connerney, Jep.(2019).The Relationship Between Photoelectron Boundary and Steep Electron Density Gradient on Mars: MAVEN Observations.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,8.
MLA Han, Qianqian,et al."The Relationship Between Photoelectron Boundary and Steep Electron Density Gradient on Mars: MAVEN Observations".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS (2019):8.

入库方式： OAI收割

来源：国家天文台

浏览0
下载0
收藏0
其他版本

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。