EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Similarities and differences of jet-like structures in different regions of the magnetosheath

Oleksandr Goncharov1, Jana Safrankova1, Zdenek Nemecek1, Niki Xirogiannopoulou1, Olga Gutynska1, Herbert Gunell2, and Maria Hamrin2
Oleksandr Goncharov et al.
  • 1Faculty of Mathematics and Physics, Charles University, Prague, Czechia (
  • 2Faculty of Science and Technology, Umea University, Umea, Sweden

Plasma structures with the enhanced dynamic pressure, density or speed are often observed in the Earth’s magnetosheath. These structures, known as jets and fast plasmoids, can be registered in the magnetosheath, downstream both the quasi-perpendicular and quasi-parallel bow shocks. Using measurements by the Magnetospheric Multiscale (MMS) spacecraft, Goncharov et al. (2020) showed similarities in the plasma properties of the jets and fast plasmoids. On the other hand, they pointed out that the different magnetic fields inside the structures suggest that the formation mechanisms are different. Hybrid simulations by Preisser et al. (2020) have shown differences in the mechanisms of jet and embedded plasmoid formation. Based on our comparative analysis, we discuss features of jet-like structures, their properties, occurrence, evolution, and relation to the magnetosheath parameters.

How to cite: Goncharov, O., Safrankova, J., Nemecek, Z., Xirogiannopoulou, N., Gutynska, O., Gunell, H., and Hamrin, M.: Similarities and differences of jet-like structures in different regions of the magnetosheath, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-1727,, 2022.