The dynamical role of anomalous cosmic rays in the outer heliosphere

Details The dynamical role of anomalous cosmic rays in the outer heliosphere The dynamical role of anomalous cosmic rays in the outer heliosphere

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004a%26a...420..729a&link_type=abstract

Astronomy and Astrophysics, v.420, p.729-736 (2004)

Astronomy and Astrophysics

Astrophysics

23

Acceleration Of Particles, Sun: Solar Wind, Ism: Cosmic Rays

Scientific paper

The two-dimensional model of the solar wind-local interstellar medium interaction developed by Baranov & Malama (\cite{bm93}, J. Geophys. Res., 98, 15 157) is improved by taking into account the dynamical effect of anomalous cosmic rays. The cosmic rays are treated as a massless diffusive fluid. It is shown that the termination shock shifts further away from the Sun in this case and the post-shock temperature of the thermal plasma decreases. The magnitude of the shift depends on the value of the energy-averaged spatial diffusion coefficient. The number density of energetic neutral hydrogen originating in the shocked solar wind is generally lower in the case of the cosmic-ray-modified termination shock.

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