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Magnetosheath jets and Alpha particles: Hybrid simulations

Authors

Preisser,  Luis
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Blanco-Cano,  Xochitl
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Trotta,  Domenico
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Burgess,  David
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Kajdic,  Primoz
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Citation

Preisser, L., Blanco-Cano, X., Trotta, D., Burgess, D., Kajdic, P. (2023): Magnetosheath jets and Alpha particles: Hybrid simulations, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-4591


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021001
Abstract
Magnetosheath jets are very common structures located downstream of Earth’s quasi-parallel bow shock characterized mainly by an increase in dynamic pressure. Although their properties and formation mechanisms have been investigated during the last 20 years nothing has been said about the influence and dynamics of alpha particles (He++), the second most important species in the solar wind after protons (H+ ), regarding jet evolution and characterization. In this work we perform a 2D local hybrid simulation (kinetic ions – fluid electrons) of a quasi- parallel (θ = 15 ), supercritical (M = 7) collisionless shock with 4% of He as a second specie in order to address these topics. Specifically, we analyze and compare the signatures of plasma parameters for both H+ and He++ as well as the associated Velocity Distribution Functions inside and around simulated jets.