Structure of the region of solar wind - Interstellar medium interaction and its influence on H atoms penetrating the solar wind

Details Structure of the region of solar wind - Interstellar medium interaction and its influence on H atoms penetrating the solar wind Structure of the region of solar wind - Interstellar medium interaction and its influence on H atoms penetrating the solar wind

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979ap%26ss..66..441b&link_type=abstract

Astrophysics and Space Science, vol. 66, no. 2, Dec. 1979, p. 441-451.

Astronomy and Astrophysics

Astrophysics

57

Hydrogen Atoms, Interstellar Matter, Plasma-Particle Interactions, Solar Wind, Charge Exchange, Helium Atoms, Neutral Particles, Solar Protons

Scientific paper

The structure of the region of interaction between the solar wind and the interstellar medium in the two-shocks model (TSM), first suggested by Baranov et al. (1970), is numerically calculated. For this problem our model is true only for charged particles of the interstellar medium inter- acting with the solar wind, since the free paths of neutral particles are very long and any hydro- dynamical approximation wou'd be incorrect. The shapes of the outer and inner shocks, the shape of the contact surface and the distribution of the parameters inside the interaction region are calculated, and are universal and correct for other astrophysical applications such as interstellar bubbles (Weaver et al., 1977), the stellar wind flow around a globule (Dyson, 1975), the interaction of stellar winds in binaries (Prilutzky and Usov, 1976), and so on. The problem of the effect of the charge exchange of H atoms with interstellar gas protons decelerated by an outer shock on H atoms penetrating the solar system is considered using the calculated results (WaIlis, 1975). This effect is shown to influence essentially the estimate of H-atom concentration in the interstellar medium based on the La-scattering data

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