Computer Science
Scientific paper
Jan 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004adspr..34...74i&link_type=abstract
Advances in Space Research, Volume 34, Issue 1, p. 74-78.
Computer Science
13
Outer Heliosphere, Solar Cycle Effects, Interstellar H Atom, Heliosphere Plasma Interface
Scientific paper
In this paper, we study response of the heliospheric plasma interface, the region of the solar wind interaction with the local interstellar medium, to 11-year solar cycle variations of the solar wind. We explore how the solar wind variations influence interstellar H atoms in the heliospheric interface, which are coupled to plasma by charge exchange. We develop the self-consistent model, where the kinetic equation for interstellar H atom velocity distribution function is solved self-consistently with the gas dynamic equations for the charged (electrons and protons) component. It is shown that the termination shock location varies within +/-7 AU, the heliopause variation is ~2 AU, and the bow shock variation is negligible. The important new result is that at large heliocentric distances the density of the interstellar H atoms varies within ~10% with solar cycle. The variation of density increases closer to the Sun up to 30% at 5 AU.
Izmodenov Vlad
Malama Yu. G.
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