- Mildly relativistic collisionless shock formed by magnetic piston
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Mildly relativistic collisionless shock formed by magnetic piston

  1. 1.
    SYSNO ASEP0537534
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleMildly relativistic collisionless shock formed by magnetic piston
    Author(s) Moreno-Gelos, Quentin (FZU-D) ORCID
    Araudo, Anabella Teresa (FZU-D) ORCID
    Korneev, Ph. (RU)
    Li, C.K. (US)
    Tikhonchuk, Vladimir (FZU-D) ORCID
    Ribeyre, X. (FR)
    d'Humieres, E. (FR)
    Weber, Stefan A. (FZU-D) RID, ORCID
    Number of authors8
    Article number122106
    Source TitlePhysics of Plasmas - ISSN 1070-664X
    Roč. 27, č. 12 (2020), s. 1-13
    Number of pages13 s.
    Languageeng - English
    CountryUS - United States
    Keywordsastrophysics ; collisionless shock ; Weibel instability ; turbulence ; kinetic simulations
    Subject RIVBL - Plasma and Gas Discharge Physics
    OECD categoryFluids and plasma physics (including surface physics)
    R&D ProjectsGA20-19854S GA ČR - Czech Science Foundation (CSF)
    EF16_019/0000789 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
    EF15_003/0000449 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
    Method of publishingLimited access
    Institutional supportFZU-D - RVO:68378271
    UT WOS000600206900003
    EID SCOPUS85099641782
    DOI https://doi.org/10.1063/1.5144683
    AnnotationBy using particle-in-cell simulations, we study the collision of two plasma flows with one of them carrying a magnetic field. Ion interpenetration results in the formation of a magnetic piston with the magnetic field compression proportional to the density ratio of the colliding plasmas. The counterpropagating ions in the nonmagnetized plasma upstream from the piston excite the ion Weibel instability, which turns into magnetic turbulence. The thickness of the piston increases with time, and it turns into a reverse magnetized shock after less than one ion gyro period. In front of the piston, the time needed to decrease the nonmagnetized ion anisotropy using the magnetic turbulence is much larger than the ion gyroperiod in the piston. Consequently, particles are reflected by the piston, which acts as a wall initiating a transient phase. After several ion periods, the formation of this electromagnetic forward shock is, then, accelerated by the piston, and at large timescale.
    WorkplaceInstitute of Physics
    ContactKristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
    Year of Publishing2021
    Electronic addresshttps://doi.org/10.1063/1.5144683
Number of the records: 1  

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