Hybrid simulation of interstellar wind interaction with solar wind plasma

Details Hybrid simulation of interstellar wind interaction with solar wind plasma Hybrid simulation of interstellar wind interaction with solar wind plasma

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsh21a1496i&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SH21A-1496

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[0545] Computational Geophysics / Modeling, [2124] Interplanetary Physics / Heliopause And Solar Wind Termination, [2126] Interplanetary Physics / Heliosphere/Interstellar Medium Interactions, [2164] Interplanetary Physics / Solar Wind Plasma

Scientific paper

Iterative Hybrid (Kinetic / MHD) approach is used to study the interaction of the partly ionized interstellar wind with the fully ionized solar wind plasma. Charged and neutral components are coupled though charge exchange. The location and topology (e.g. asymmetries) of the Heliospheric boundaries (BS, HP and TS) are analyzed and compared to previous multi-fluid approach, where the kinetic description of neutrals was approximated by hydrodynamic multi neutral species (4 species). Based on analysis of global heliospheric asymmetries, we use our best estimate for the interstellar magnetic field orientation and intensity. The iterative scheme is performed using the ionized fluid properties obtained with our 3D MHD code as a source term for the neutral H, which is treated by solving the Boltzmann Kinetic equation, the output of the later is fed back to the MHD code as plasma source terms. Each of these phases is allowed to reach a steady state before each iteration.

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