On kinetic structure of quasi-perpendicular collisionless shocks

Manfred Scholer, Shuichi Matsukiyo

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    We discuss one-dimensional electromagnetic full particle simulations of quasi-perpendicular collisionless shocks with physical mass ratio in the context of recent Cluster bow shock measurements. The density ramp scale in units of the ion inertial length obtained from simulations of high ion beta shocks (βi ≈ 1) does not increase with Mach number, contrary to what has been reported from Earth's bow shock measurements. Several possibilities are offered which could explain this discrepancy. In low beta shocks the modified two-stream instability is important in the foot of the shock and can lead to large density and electric field spikes. It is suggested that recent Cluster observations of short scale electric field spikes at the quasi-perpendicular Earth's bow shock can be explained in terms of the modified two-stream instability.

    Original languageEnglish
    Title of host publicationTHE PHYSICS OF COLLISIONLESS SHOCKS
    Subtitle of host publication4th Annual IGPP International Astrophysics Conference
    Pages22-26
    Number of pages5
    DOIs
    Publication statusPublished - Aug 1 2005
    EventTHE PHYSICS OF COLLISIONLESS SHOCKS: 4th Annual IGPP International Astrophysics Conference - Palm Springs, CA, United States
    Duration: Feb 26 2005Mar 3 2005

    Publication series

    NameAIP Conference Proceedings
    Volume781
    ISSN (Print)0094-243X
    ISSN (Electronic)1551-7616

    Other

    OtherTHE PHYSICS OF COLLISIONLESS SHOCKS: 4th Annual IGPP International Astrophysics Conference
    CountryUnited States
    CityPalm Springs, CA
    Period2/26/053/3/05

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    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy(all)

    Cite this

    Scholer, M., & Matsukiyo, S. (2005). On kinetic structure of quasi-perpendicular collisionless shocks. In THE PHYSICS OF COLLISIONLESS SHOCKS: 4th Annual IGPP International Astrophysics Conference (pp. 22-26). (AIP Conference Proceedings; Vol. 781). https://doi.org/10.1063/1.2032669