• Login
     
    View Item 
    •   ORFEO Home
    • Royal Belgian Institute for Space Aeronomy
    • BIRA-IASB publications
    • View Item
    •   ORFEO Home
    • Royal Belgian Institute for Space Aeronomy
    • BIRA-IASB publications
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    A Monte Carlo simulation of the H+ polar wind: Effect of velocity distributions with kappa suprathermal tails

    View/Open
    Barghouti(2001a).pdf (116.4Kb)
    Authors
    Barghouthi, I.A.
    Pierrard, V.
    Barakat, A.R.
    Lemaire, J.
    Show allShow less
    Discipline
    Physical sciences
    Audience
    Scientific
    Date
    2001
    Metadata
    Show full item record
    Description
    A Monte Carlo simulation is used to study the effects of Kappa H+ distributions in the polar wind. We consider the gravity, the polarization electric field, the divergence of geomagnetic field lines and Coulomb collisions of H+ in a background of O+ ions. The aim is to study the consequences of a velocity distribution function with an enhanced high energy tail instead of a Maxwellian distribution as assumed in earlier Monte Carlo simulations. The transformation of the velocity distribution function of H+ ions as a function of the altitude is presented. Effects resulting from the acceleration of the particles by the polarization electric field and from Coulomb collisions depend on the energy of the particles. Coulomb collisions mainly affect low energy particles while high energy particles are more efficiently accelerated by the upward directed ambipolar electric field. The combination of both effects results in double-hump velocity distribution functions developing in the transition region. We study consequences of suprathermal tails distributions on the shape of the double-hump and on the moments of the velocity distribution function.
    Citation
    Barghouthi, I.A.; Pierrard, V.; Barakat, A.R.; Lemaire, J. (2001). A Monte Carlo simulation of the H+ polar wind: Effect of velocity distributions with kappa suprathermal tails. , Astrophysics and Space Science, Vol. 277, Issue 3, 427-436, DOI: 10.1023/A:1012536114212.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/5244
    doi: http://dx.doi.org/10.1023/A:1012536114212
    scopus: 2-s2.0-0035605539
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
    NewsHelpdeskBELSPO OA Policy

    Browse

    All of ORFEOCommunities & CollectionsBy Issue DateAuthorsTitlesDisciplinesThis CollectionBy Issue DateAuthorsTitlesDisciplines
     

    DSpace software copyright © 2002-2016  DuraSpace
    Send Feedback | Cookie Information
    Theme by 
    Atmire NV