Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 38, issue 3
Articles | Volume 38, issue 3
https://doi.org/10.5194/angeo-38-625-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-38-625-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 38, issue 3
Regular paper
 | 
26 May 2020
Regular paper |  | 26 May 2020

Non-locality of Earth's quasi-parallel bow shock: injection of thermal protons in a hybrid-Vlasov simulation

Markus Battarbee, Urs Ganse, Yann Pfau-Kempf, Lucile Turc, Thiago Brito, Maxime Grandin, Tuomas Koskela, and Minna Palmroth

Model code and software

Vlasiator, Web site M. Palmroth http://www.physics.helsinki.fi/vlasiator/

Vlasiator: hybrid-Vlasov simulation code M. Palmroth and the Vlasiator team https://doi.org/10.5281/zenodo.3640593

VLSV: file format and tools A. Sandroos https://github.com/fmihpc/vlsv/

Analysator: python analysis toolkit O. Hannuksela and the Vlasiator team https://github.com/fmihpc/analysator/

Video supplement

Supplementary Video A M. Battarbee, U. Ganse, Y. Pfau-Kempf, L. Turc, T. Brito, M. Grandin, T. Koskela, and M. Palmroth https://doi.org/10.5446/42960

Supplementary Video B M. Battarbee, U. Ganse, Y. Pfau-Kempf, L. Turc, T. Brito, M. Grandin, T. Koskela, and M. Palmroth https://doi.org/10.5446/42961

Supplementary Video C M. Battarbee, U. Ganse, Y. Pfau-Kempf, L. Turc, T. Brito, M. Grandin, T. Koskela, and M. Palmroth https://doi.org/10.5446/42962

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Short summary
The structure and medium-scale dynamics of Earth's bow shock and how charged solar wind particles are reflected by it are studied in order to better understand space weather effects. We use advanced supercomputer simulations to model the shock and reflected ions. We find that the thickness of the shock depends on solar wind conditions but also has small-scale variations. Charged particle reflection is shown to be non-localized. Magnetic fields are important for ion reflection.
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