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    Drift Instabilities in Thin Current Sheets Using a Two-Fluid Model With Pressure Tensor Effects

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    2018JA026313.pdf (2.181Mb)
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    https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018JA026313
    Permanent Link
    https://doi.org/10.1029/2018JA026313
    http://hdl.handle.net/11603/22152
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    • UMBC Goddard Planetary Heliophysics Institute (GPHI)
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    Author/Creator
    Ng, Jonathan
    Hakim, Ammar
    Juno, J.
    Bhattacharjee, A.
    Date
    2019-04-15
    Type of Work
    16 pages
    Text
    journal articles
    Citation of Original Publication
    Ng, Jonathan et al.; Drift Instabilities in Thin Current Sheets Using a Two-Fluid Model With Pressure Tensor Effects; Journal of Geophysical Research: Space Physics, 124, 5, p 3331-3346, 15 April, 2019; https://doi.org/10.1029/2018JA026313
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    This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
    ©2018. American Geophysical Union. All Rights Reserved
    Abstract
    The integration of kinetic effects in fluid models is important for global simulations of the Earth's magnetosphere. We use a two-fluid 10-moment model, which includes the pressure tensor and has been used to study reconnection, to study the drift kink and lower hybrid drift instabilities. Using a nonlocal linear eigenmode analysis, we find that for the kink mode, the 10-moment model shows good agreement with kinetic calculations with the same closure model used in reconnection simulations, while the electromagnetic and electrostatic lower hybrid instabilities require modeling the effects of the ion resonance using a Landau fluid closure. Comparisons with kinetic simulations and the implications of the results for global magnetospheric simulations are discussed.


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    Albin O. Kuhn Library & Gallery
    University of Maryland, Baltimore County
    1000 Hilltop Circle
    Baltimore, MD 21250
    www.umbc.edu/scholarworks

    Contact information:
    Email: scholarworks-group@umbc.edu
    Phone: 410-455-3544


    If you wish to submit a copyright complaint or withdrawal request, please email mdsoar-help@umd.edu.