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Modeling the impact of a strong X-class solar flare on the planetary ion composition in Mercury's magnestosphere

Abstract : Solar flares could potentially give rise to sudden changes in the planetary ion composition in Mercury's magnetosphere. We model the time-dependent evolution of the Mg + , Na +, O + and He+ ion density distribution during the extreme X9.3-class solar flare event on 6 September 2017 with the Latmos Ionized Exosphere (LIZE) model. We find that the peak ion density in the nightside plasma sheet is delayed by ∼7−8 min compared to the dayside, and that the maximum Mg + density occurs ∼4 min before He + and O + in the whole magnetosphere. We also find that there exist two ion energy populations on the dayside which experience different dynamical evolution during the event.
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https://hal-insu.archives-ouvertes.fr/insu-03771994
Contributor : Catherine Cardon Connect in order to contact the contributor
Submitted on : Wednesday, September 7, 2022 - 6:10:06 PM
Last modification on : Tuesday, December 6, 2022 - 4:06:58 AM

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  • HAL Id : insu-03771994, version 1

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Elisabeth Werner, François Leblanc, Jean-Yves Chaufray, Ronan Modolo, Sae Aizawa, et al.. Modeling the impact of a strong X-class solar flare on the planetary ion composition in Mercury's magnestosphere. Mercury 2022 Conference, Jun 2022, Orléans, France. ⟨insu-03771994⟩

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