Responses of the Martian Magnetosphere to an Interplanetary Coronal Mass Ejection: MAVEN Observations and LatHyS Results

被引：24

作者：

Romanelli, N. ^{[1
]}

Modolo, R. ^{[1
]}

Leblanc, F. ^{[2
]}

Chaufray, J. -Y. ^{[1
]}

Martinez, A. ^{[1
]}

Ma, Y. ^{[3
]}

Lee, C. O. ^{[4
]}

Luhmann, J. G. ^{[4
]}

Halekas, J. ^{[5
]}

Brain, D. ^{[6
]}

DiBraccio, G. ^{[7
]}

Espley, J. ^{[7
]}

Mcfadden, J. ^{[4
]}

Jakosky, B. ^{[6
]}

Holmstrom, M. ^{[8
]}

机构：

[1] UPMC, UVSQ, CNRS, Lab Atmospheres Milieux & Observat Spatiales,IPSL, Paris, France

[2] Univ Paris06, Sorbonne Univ, UVSQ, LATMOS IPSL,UPMC,CNRS, Paris, France

[3] Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA

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

[5] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA

[6] Univ Colorado, Atmospher & Space Phys Lab, Campus Box 392, Boulder, CO 80309 USA

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

[8] IRF, Kiruna, Sweden

来源：

GEOPHYSICAL RESEARCH LETTERS | 2018年 / 45卷 / 16期

关键词：

coronal mass ejection; Mars; bow shock; magnetic pileup boundary; planetary ion escape; MARS-GLOBAL-SURVEYOR; SOLAR-WIND INTERACTION; MAGNETIC-FIELD; UPPER-ATMOSPHERE; VARIABILITY; ICME; EXPRESS; SHOCK;

D O I：

10.1029/2018GL077714

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft observed a strong interplanetary coronal mass ejection (ICME) reaching Mars on 13 September 2017. In this work we analyze the interaction between such an extreme event and the Martian-induced magnetosphere by means of Laboratoire Atmospheres, Milieux et Observations Spatiales Hybrid Simulation (LatHyS) stationary runs and magnetic field and plasma observations obtained by MAVEN in a time interval from similar to 5 hr before the ICME shock arrival to about 5.5 hr after the impact. Detailed comparisons between simulation results and such MAVEN measurements are performed and show that several stages during this interaction can be described through a combination of steady states. LatHyS results show the simulated bow shock is closer to the planet for higher magnetosonic Mach number and solar wind dynamic pressure conditions, in agreement with previous observational studies. MAVEN observations and LatHyS results also suggest a compression on the flanks of the magnetic pileup boundary. Finally, simulated H+ and O+ planetary escape rates increase by a factor similar to 10 and similar to 2.4, respectively, due to the ICME passage through the Martian magnetosphere. Plain Language Summary Studies on the responses of Mars to variable external conditions are of great importance, particularly to identify and characterize time-dependent physical processes occurring inside and around its induced planetary magnetosphere. Solar extreme events are expected to play a fundamental role strongly modifying the plasma environment surrounding this atmospheric obstacle, lacking an intrinsic global magnetic field. In this work we analyze the interaction between an interplanetary coronal mass ejection and Mars by means of Mars Atmosphere and Volatile EvolutioN (MAVEN) magnetic field and plasma observations obtained around 13 September 2017. In addition, we study this interacting system by performing three Laboratoire Atmospheres, Milieux et Observations Spatiales Hybrid Simulation stationary runs. Detailed comparisons between simulation results and MAVEN measurements show that several stages during the analyzed time interval can be described through a combination of steady states. In addition, the simulated bow shock is found closer to the planet for higher magnetosonic Mach number and solar wind dynamic pressure conditions. MAVEN observations and Laboratoire Atmospheres, Milieux et Observations Spatiales Hybrid Simulation results also suggest a compression on the flanks of the magnetic pileup boundary. Finally, simulated H+ and O+ planetary escape rates are found to increase by a factor similar to 10 and similar to 2.4, respectively, due to the interplanetary coronal mass ejection passage through the Martian magnetosphere.

引用

页码：7891 / 7900

页数：10

共 48 条

[1] Global distribution of crustal magnetization discovered by the Mars Global Surveyor MAG/ER experiment [J].

Acuña, MH ;

Connerney, JEP ;

Ness, NF ;

Lin, RP ;

Mitchell, D ;

Carlson, CW ;

McFadden, J ;

Anderson, KA ;

Rème, H ;

Mazelle, C ;

Vignes, D ;

Wasilewski, P ;

Cloutier, P .

SCIENCE, 1999, 284 (5415) :790-793

[2] Magnetic field and plasma observations at Mars:: Initial results of the Mars global surveyor mission [J].

Acuña, MH ;

Connerney, JEP ;

Wasilewski, P ;

Lin, RP ;

Anderson, KA ;

Carlson, CW ;

McFadden, J ;

Curtis, DW ;

Mitchell, D ;

Reme, H ;

Mazelle, C ;

Sauvaud, JA ;

d'Uston, C ;

Cros, A ;

Medale, JL ;

Bauer, SJ ;

Cloutier, P ;

Mayhew, M ;

Winterhalter, D ;

Ness, NF .

SCIENCE, 1998, 279 (5357) :1676-1680

[3]

[Anonymous], ASTROPHYSICAL J

[4] The spatial distribution of planetary ion fluxes near Mars observed by MAVEN [J].

Brain, D. A. ;

McFadden, J. P. ;

Halekas, J. S. ;

Connerney, J. E. P. ;

Bougher, S. W. ;

Curry, S. ;

Dong, C. F. ;

Dong, Y. ;

Eparvier, F. ;

Fang, X. ;

Fortier, K. ;

Hara, T. ;

Harada, Y. ;

Jakosky, B. M. ;

Lillis, R. J. ;

Livi, R. ;

Luhmann, J. G. ;

Ma, Y. ;

Modolo, R. ;

Seki, K. .

GEOPHYSICAL RESEARCH LETTERS, 2015, 42 (21) :9142-9148

[5] An n=90 internal potential function of the Martian crustal magnetic field -: art. no. 5008 [J].

Cain, JC ;

Ferguson, BB ;

Mozzoni, D .

JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, 2003, 108 (E2)

[6] Steady-state magnetohydrodynamic plasma flow past conducting sphere [J].

Chacko, Z ;

Hassam, AB .

PHYSICS OF PLASMAS, 1997, 4 (08) :3031-3039

[7] Variability of the hydrogen in the martian upper atmosphere as simulated by a 3D atmosphere-exosphere coupling [J].

Chaufray, J. -Y. ;

Gonzalez-Galindo, F. ;

Forget, F. ;

Lopez-Valverde, M. A. ;

Leblanc, F. ;

Modolo, R. ;

Hess, S. .

ICARUS, 2015, 245 :282-294

[8] Three-dimensional Martian ionosphere model: II. Effect of transport processes due to pressure gradients [J].

Chaufray, J. -Y. ;

Gonzalez-Galindo, F. ;

Forget, F. ;

Lopez-Valverde, M. ;

Leblanc, F. ;

Modolo, R. ;

Hess, S. ;

Yagi, M. ;

Blelly, P. -L. ;

Witasse, O. .

JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, 2014, 119 (07) :1614-1636

[9] First results of the MAVEN magnetic field investigation [J].

Connerney, J. E. P. ;

Espley, J. R. ;

DiBraccio, G. A. ;

Gruesbeck, J. R. ;

Oliversen, R. J. ;

Mitchell, D. L. ;

Halekas, J. ;

Mazelle, C. ;

Brain, D. ;

Jakosky, B. M. .

GEOPHYSICAL RESEARCH LETTERS, 2015, 42 (21) :8819-8827

[10] The MAVEN Magnetic Field Investigation [J].

Connerney, J. E. P. ;

Espley, J. ;

Lawton, P. ;

Murphy, S. ;

Odom, J. ;

Oliversen, R. ;

Sheppard, D. .

SPACE SCIENCE REVIEWS, 2015, 195 (1-4) :257-291

← 1 2 3 4 5 →