Is the solar wind termination shock a cosmic-ray mediated shock?

Details Is the solar wind termination shock a cosmic-ray mediated shock? Is the solar wind termination shock a cosmic-ray mediated shock?

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aipc..858..177k&link_type=abstract

PHYSICS OF THE INNER HELIOSHEATH: Voyager Observations, Theory, and Future Prospects; 5th Annual IGPP International Astrophysics

Astronomy and Astrophysics

Astrophysics

Heliopause And Solar Wind Termination, Planetary Bow Shocks, Interplanetary Shocks, Energetic Particles, Heliosphere/Interstellar Medium Interactions

Scientific paper

Based on observations near Earth's orbit with the CELIAS/STOF sensor on board SOHO and with the ACE magnetometer, and on the model of Zank et al. we calculate the evolution of transport parameters of energetic particles over heliocentric distance. From the calculated transport parameters we estimate the spatial distribution of termination shock energetic particles (TSPs) and of the Anomalous Cosmic Rays (ACRs) near the termination shock and in the heliosheath. In agreement with Voyager 1 observations we find that the TSP/ACR pressure is of the order of a significant fraction of the dynamical pressure of the neutral gas component of the interstellar medium. Therefore, the solar wind termination shock should be a cosmic-ray mediated shock.

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