Martian Bow Shock Oscillations Driven by Solar Wind Variations: Simultaneous Observations From Tianwen-1 and MAVEN

被引：5

作者：

Cheng, Long ^{[1
,2
,3
]}

Lillis, Robert ^{[2
]}

Wang, Yuming ^{[1
,3
]}

Mittelholz, Anna ^{[4
]}

Xu, Shaosui ^{[2
]}

Mitchell, David L. L. ^{[2
]}

Johnson, Catherine ^{[5
]}

Su, Zhenpeng ^{[1
,3
]}

Halekas, Jasper S. S. ^{[6
]}

Langlais, Benoit ^{[7
]}

Zhang, Tielong ^{[3
,8
,9
]}

Wang, Guoqiang ^{[9
]}

Xiao, Sudong ^{[9
]}

Zou, Zhuxuan ^{[1
,3
]}

Wu, Zhiyong ^{[1
,3
]}

Chi, Yutian ^{[10
]}

Pan, Zonghao ^{[1
,3
]}

Liu, Kai ^{[1
,3
]}

Hao, Xinjun ^{[1
,3
]}

Li, Yiren ^{[1
,3
]}

Chen, Manming ^{[1
,3
]}

Espley, Jared ^{[11
]}

Eparvier, Frank ^{[12
]}

机构：

[1] Univ Sci & Technol China, Sch Earth & Space Sci, Deep Space Explorat Lab, Hefei, Peoples R China

[2] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA

[3] Univ Sci & Technol China, CAS Ctr Excellence Comparat Planetol, CAS Key Lab Geospace Environm, Mengcheng Natl Geophys Observ, Hefei, Peoples R China

[4] Harvard Univ, Dept Earth & Planetary Sci, Cambridge, MA USA

[5] Univ British Columbia, Dept Earth Ocean & Atmospher Sci, Vancouver, BC, Canada

[6] Univ Iowa, Dept Phys & Astron, Iowa City, IA USA

[7] Nantes Univ, Univ Angers, Le Mans Univ, Lab Planetol & Geosci, Nantes, France

[8] Austrian Acad Sci, Space Res Inst, Graz, Austria

[9] Harbin Inst Technol, Inst Space Sci & Appl Technol, Shenzhen, Peoples R China

[10] Inst Deep Space Sci, Deep Space Explorat Lab, Hefei, Peoples R China

[11] NASA, Goddard Space Flight Ctr, Greenbelt, MD USA

[12] Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2023年 / 50卷 / 16期

关键词：

MARS GLOBAL SURVEYOR; MISSION; VARIABILITY; ENVIRONMENT; PRESSURE;

D O I：

10.1029/2023GL104769

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The Martian bow shock stands as the first defense against the solar wind and shapes the Martian magnetosphere. Previous studies showed the correlation between the Martian bow shock location and solar wind parameters. Here we present direct evidence of solar wind effects on the Martian bow shock by analyzing Tianwen-1 and MAVEN data. We examined three cases where Tianwen-1 data show rapid oscillations of the bow shock, while MAVEN data record changes in solar wind plasma and magnetic field. The results indicate that the bow shock is rapidly compressed and then expanded during the dynamic pressure pulse in the solar wind, and is also oscillated during the IMF rotation. The superposition of variations in multiple solar wind parameters leads to more intensive bow shock oscillation. This study emphasizes the importance of joint observations by Tianwen-1 and MAVEN for studying the real-time response of the Martian magnetosphere to the solar wind.

引用

页数：10

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