The influence of solar irradiation and solar wind conditions on heavy ion escape from Mars

Zhang, Qi, 1995- (författare): Umeå universitet,Institutionen för fysik,Swedish Institute of Space Physics, Kiruna, Sweden

Holmström, Mats (författare): Swedish Institute of Space Physics, Kiruna, Sweden

Wang, Xiao-Dong (författare): Swedish Institute of Space Physics, Kiruna, Sweden

Nilsson, Hans (författare): Umeå universitet,Institutionen för fysik,Swedish Institute of Space Physics, Kiruna, Sweden

Barabash, Stas (författare): Swedish Institute of Space Physics, Kiruna, Sweden

(creator_code:org_t)

American Geophysical Union (AGU), 2023
2023
Engelska.
Ingår i: Journal of Geophysical Research - Space Physics. - : American Geophysical Union (AGU). - 2169-9380 .- 2169-9402. ; 128:10

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Abstract Ämnesord

Stäng

We apply a recently proposed method to estimate heavy ion escape from Mars. The method combines in situ observations with a hybrid plasma model, which treats ions as particles and electrons as a fluid. With this method, we investigate how solar upstream conditions, including solar extreme ultraviolet (EUV) radiation, solar wind dynamic pressure, and interplanetary magnetic field (IMF) strength and cone angle, affect the heavy ion loss. The results indicate that the heavy ion escape rate is greater in high EUV conditions. The escape rate increases with increasing solar wind dynamic pressure, and decreases as the IMF strength increases. The ion escape rate is highest when the solar wind is parallel to the IMF and lowest when they are perpendicular. The plume escape rate decreases when the solar wind convective electric field increases.

Av författaren/redakt...: Zhang, Qi, 1995-; Holmström, Mats; Wang, Xiao-Dong; Nilsson, Hans; Barabash, Stas

Om ämnet

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