The Multifluid Solar Wind Termination Shock and its Influence on the Threedimensional Plasma Structure Upstream and Downstream

Details The Multifluid Solar Wind Termination Shock and its Influence on the Threedimensional Plasma Structure Upstream and Downstream The Multifluid Solar Wind Termination Shock and its Influence on the Threedimensional Plasma Structure Upstream and Downstream

Apr 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ssrv...72..237c&link_type=abstract

Space Science Reviews, Volume 72, Issue 1-2, pp. 237-242

Computer Science

7

Anomalous Cosmic Rays, Heliospheric Shock, Multifluid Plasma

Scientific paper

The solar wind termination shock is described as a multi-fluid phenomenon taking into account the magnetohydrodynamic self-interaction of a multispecies plasma consisting of solar wind ions, pick-up ions and shock-generated anomalous cosmic ray particles. The spatial diffusion of these high energy particles relative to the resulting, pressure-modified solar wind flow structure is described by a coupled system of differential equations describing mass-, momentum-, and energy-flow continuities for all plasma components. The energy loss due to escape of energetic particles (MeV) from the precursor into the inner heliosphere is taken into account. We determine the integrated properties of the anomalous cosmic ray gas and the low-energy solar wind. Also the variation of the compression ratio of the shock structure is quantitatively determined and is related to the pick-up ion energization efficiency and to the mean energy of the downstream anomalous cosmic ray particles. The variation of the resulting shock structure and of the solar wind sheath plasma extent beyond the shock is discussed with respect to its consequences for the LISM neutral gas filtration and the threedimensional shape of the heliosphere.

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