Other
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsh21b1599w&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #SH21B-1599
Other
7811 Discontinuities (2109), 7837 Neutral Particles (2151), 7846 Plasma Energization, 7851 Shock Waves (4455), 7859 Transport Processes
Scientific paper
We have examined energy dissipation via ion reflection and transmission at the heliospheric termination shock in the presence of pickup ions. Our simulations using the Los Alamos hybrid code show that transmitted pickup ions and the reflected solar wind ions carry the dominant pressures downstream of the shock. These results agree well with Voyager 2's observations of the termination shock crossing, which showed that populations other than the core solar wind must carry the majority of the downstream pressure. An analytical model for energy partition at the termination shock is developed. Results of the hybrid simulation strongly support the results of the analytic model. We go on to use the analytic model to predict the distributions that may be observed by the Interstellar Boundary Explorer Mission. Thus, we provide a theoretical framework to bridge Voyager 2 observations of the termination shock with energetic neutral atom observations from IBEX.
Gary Peter S.
Lee Minchul
Schwadron Nathan
Winske Dan
Wu Patrick
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