Abstract Several types of numerical models are used to analyze the interactions of the solar wind flow with Mercury’s magnetosphere, including kinetic models that determine magnetic and electric fields based on the spatial distribution of charges and currents, magnetohydrodynamic models that describe plasma as a conductive liquid, and hybrid models that describe ions kinetically in collisionless mode and represent electrons as a massless neutralizing liquid. The structure of resulting solutions is determined not only by the chosen set of equations that govern the behavior of plasma, but also by the initial and boundary conditions; i.e., their effects are not limited to the amount of computational work required to achieve a quasi-stationary solution. In this work, we have proposed using the magnetic field computed by the paraboloid model of Mercury’s magnetosphere as the initial condition for subsequent hybrid modeling. The results of the model have been compared to measurements performed by the Messenger spacecraft during a single crossing of the magnetosheath and the magnetosphere. The selected orbit lies in the terminator plane, which allows us to observe two crossings of the bow shock and the magnetopause. In our calculations, we have defined the initial parameters of the global magnetospheric current systems in a way that allows us to minimize paraboloid magnetic field deviation along the trajectory of the Messenger from the experimental data. We have shown that the optimal initial field parameters include setting the penetration of a partial interplanetary magnetic field into the magnetosphere with a penetration coefficient of 0.2.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Calculation of the Initial Magnetic Field for Mercury’s Magnetosphere Hybrid Model


    Contributors:

    Published in:

    Cosmic Research ; 56 , 2 ; 108-114


    Publication date :

    2018-03-01


    Size :

    7 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Calculation of the Initial Magnetic Field for Mercury’s Magnetosphere Hybrid Model

    Alexeev, Igor / Parunakian, David / Dyadechkin, Sergey et al. | Online Contents | 2018


    Mercury's magnetosphere

    Slavin, J.A. | Online Contents | 2004


    Mercury's Magnetosphere

    Slavin, J. A. / International Council of Scientific Unions | British Library Conference Proceedings | 2004


    Mercury's magnetosphere

    Slavin, J.A. | Elsevier | 2003


    On electromagnetic phenomena in Mercury's magnetosphere

    Blomberg, L.G. | Online Contents | 2004