Deflection of O2+ ion flow by Magnetic Fields in the Martian Ionosphere

Shibang Li; Haoyu Lyu; Jinbin Cao; Jun Cui; Chenling Zhou; Jim Wild; Guokan Li; Yun Li

doi:10.3847/1538-4357/aca32b

Deflection of O₂⁺ ion flow by Magnetic Fields in the Martian Ionosphere

Shibang Li
, Haoyu Lyu
, Jinbin Cao
, Jun Cui
, Chenling Zhou
, Jim Wild
, Guokan Li
, Yun Li

School of Space and Environment, Beihang University, Beijing, 100191, China
School of Space and Environment, Beihang University, Beijing, 100191, China
School of Atmospheric Sciences, Sun Yat-Sen University , Zhuhai, People’s Republic of China
Key Laboratory of Space Environment Monitoring and Information Processing, Ministry of Industry and Information Technology, Beijing, 100191, China
Key Laboratory of Space Environment Monitoring and Information Processing, Ministry of Industry and Information Technology, Beijing, 100191, China
Key Laboratory of Space Environment Monitoring and Information Processing, Ministry of Industry and Information Technology, Beijing, 100191, China
Beihang University

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Abstract

The effect of the Martian crustal magnetic field on ion escape is the focus of considerable interest. Directions of Martian magnetic field determined by the interaction between Mars’ crustal and interplanetary magnetic fields have been suggested to play a significant role on ion transport around Mars. In this study we investigate the physical mechanism deflecting O₂⁺ transport in two typical magnetic field orientations at horizontal plane by performing three-dimensional multi-fluid Hall magneto-hydrodynamic (MHD) simulations. Cross validation of tThe simulation results of cross validation byfrom considering the Martian G110 crustal field model and equivalent source dipole model reveals that due to the Hall electric force, O₂⁺ ions flow tends to be accelerated eastwards in the outward magnetic field region occupied by outward magnetic fields, and westwards in the region with inward one mainly by themagnetic fields Hall electric force. These results are helpful for understanding how the deflection of Martian atmospheric ions flow are influenced by the Martian magnetic field environment and the impact of the crustal fields on the motion of atmospheric ions in the Martian space environment.

Original language	English
Article number	198
Number of pages	8
Journal	The Astrophysical Journal
Volume	941
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/aca32b
Publication status	Published - 23/12/2022

User-defined Keywords

Mars
Solar-planetary interactions
Magnetic anomalies
Magnetohydrodynamics

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10.3847/1538-4357/aca32bLicence: CC BY: Creative Commons Attribution 4.0 International License

Li et al ApJ AcceptedAccepted author manuscript, 1.17 MBLicence: CC BY: Creative Commons Attribution 4.0 International License

https://iopscience.iop.org/article/10.3847/1538-4357/aca32bLicence: CC BY: Creative Commons Attribution 4.0 International License

1 Finished

Space and Planetary Research at Lancaster University
Wild, J. (Principal Investigator), Arridge, C. (Co-Investigator), Grocott, A. (Co-Investigator), Ray, L. (Co-Investigator), Badman, S. (Co-Investigator), Ray, L. (Co-Investigator) & Badman, S. (Co-Investigator)
STFC
1/04/18 → 30/09/22
Project: Research

5 Journal article

Effects of solar wind density and velocity variations on the Martian ionosphere and plasma transport - a MHD model study
Song, Y., Lyu, H., Cao, J., Wu, X., Liu, Y., Li, S., Wang, S., Wild, J., Zhou, C., Wang, J. & Chen, N., 20/12/2023, In: Space Weather. 128, 12, e2023JA031788.
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The Impact and Mechanism of the Magnetic Inclination Angle on O + Escape from Mars
Li, S., Lu, H., Cao, J., Mazelle, C., Cui, J., Rong, Z., Wild, J. A., Yu, Y., Li, X., Li, Y. & Li, G., 20/05/2022, In: The Astrophysical Journal. 931, 1, 30.
Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Hybrid simulations of the proton precipitation patterns onto the upper atmosphere of Mars
Dieval, C., Kallio, E., Stenberg, G., Barabash, S. & Jarvinen, R., 02/2012, In: Earth, Planets and Space. 64, 2, p. 121-134 14 p.
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Cite this

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title = "Deflection of O2+ ion flow by Magnetic Fields in the Martian Ionosphere",

abstract = "The effect of the Martian crustal magnetic field on ion escape is the focus of considerable interest. Directions of Martian magnetic field determined by the interaction between Mars{\textquoteright} crustal and interplanetary magnetic fields have been suggested to play a significant role on ion transport around Mars. In this study we investigate the physical mechanism deflecting O2+ transport in two typical magnetic field orientations at horizontal plane by performing three-dimensional multi-fluid Hall magneto-hydrodynamic (MHD) simulations. Cross validation of tThe simulation results of cross validation byfrom considering the Martian G110 crustal field model and equivalent source dipole model reveals that due to the Hall electric force, O2+ ions flow tends to be accelerated eastwards in the outward magnetic field region occupied by outward magnetic fields, and westwards in the region with inward one mainly by themagnetic fields Hall electric force. These results are helpful for understanding how the deflection of Martian atmospheric ions flow are influenced by the Martian magnetic field environment and the impact of the crustal fields on the motion of atmospheric ions in the Martian space environment. ",

keywords = "Mars, Solar-planetary interactions, Magnetic anomalies, Magnetohydrodynamics",

author = "Shibang Li and Haoyu Lyu and Jinbin Cao and Jun Cui and Chenling Zhou and Jim Wild and Guokan Li and Yun Li",

year = "2022",

month = dec,

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doi = "10.3847/1538-4357/aca32b",

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AU - Li, Shibang

AU - Lyu, Haoyu

AU - Cao, Jinbin

AU - Cui, Jun

AU - Zhou, Chenling

AU - Wild, Jim

AU - Li, Guokan

AU - Li, Yun

PY - 2022/12/23

Y1 - 2022/12/23

N2 - The effect of the Martian crustal magnetic field on ion escape is the focus of considerable interest. Directions of Martian magnetic field determined by the interaction between Mars’ crustal and interplanetary magnetic fields have been suggested to play a significant role on ion transport around Mars. In this study we investigate the physical mechanism deflecting O2+ transport in two typical magnetic field orientations at horizontal plane by performing three-dimensional multi-fluid Hall magneto-hydrodynamic (MHD) simulations. Cross validation of tThe simulation results of cross validation byfrom considering the Martian G110 crustal field model and equivalent source dipole model reveals that due to the Hall electric force, O2+ ions flow tends to be accelerated eastwards in the outward magnetic field region occupied by outward magnetic fields, and westwards in the region with inward one mainly by themagnetic fields Hall electric force. These results are helpful for understanding how the deflection of Martian atmospheric ions flow are influenced by the Martian magnetic field environment and the impact of the crustal fields on the motion of atmospheric ions in the Martian space environment.

AB - The effect of the Martian crustal magnetic field on ion escape is the focus of considerable interest. Directions of Martian magnetic field determined by the interaction between Mars’ crustal and interplanetary magnetic fields have been suggested to play a significant role on ion transport around Mars. In this study we investigate the physical mechanism deflecting O2+ transport in two typical magnetic field orientations at horizontal plane by performing three-dimensional multi-fluid Hall magneto-hydrodynamic (MHD) simulations. Cross validation of tThe simulation results of cross validation byfrom considering the Martian G110 crustal field model and equivalent source dipole model reveals that due to the Hall electric force, O2+ ions flow tends to be accelerated eastwards in the outward magnetic field region occupied by outward magnetic fields, and westwards in the region with inward one mainly by themagnetic fields Hall electric force. These results are helpful for understanding how the deflection of Martian atmospheric ions flow are influenced by the Martian magnetic field environment and the impact of the crustal fields on the motion of atmospheric ions in the Martian space environment.

KW - Mars

KW - Solar-planetary interactions

KW - Magnetic anomalies

KW - Magnetohydrodynamics

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DO - 10.3847/1538-4357/aca32b

M3 - Journal article

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JO - The Astrophysical Journal

JF - The Astrophysical Journal

IS - 2

M1 - 198

ER -

Deflection of O2+ ion flow by Magnetic Fields in the Martian Ionosphere

Abstract

User-defined Keywords

Access to Document

Projects

Space and Planetary Research at Lancaster University

Research output

Effects of solar wind density and velocity variations on the Martian ionosphere and plasma transport - a MHD model study

The Impact and Mechanism of the Magnetic Inclination Angle on O + Escape from Mars

Hybrid simulations of the proton precipitation patterns onto the upper atmosphere of Mars

Cite this

Deflection of O₂⁺ ion flow by Magnetic Fields in the Martian Ionosphere