Physics
Scientific paper
Jan 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004adspr..34...99c&link_type=abstract
Advances in Space Research, Volume 34, Issue 1, p. 99-103.
Physics
7
Termination Shock, Inner Heliosheath, Energetic Neutral Atoms, Pickup Proton Energy Spectra
Scientific paper
The spatial variation of pickup protons downstream the termination shock in the upwind direction is considered taking into account stochastic pre-acceleration in the supersonic solar wind. It is shown that energy spectra of pick-up protons in the inner heliosheath are considerably different from those in the region inside the termination shock due to efficient charge exchange reactions between the protons and interstellar hydrogen atoms and due to energy diffusion. Differential fluxes of energetic neutral atoms (ENAs) originating from the charge exchange process in the inner heliosheath are calculated at 1 AU. It is shown that observations of neutral hydrogen fluxes in the energy range from 1 to 100 keV can give important information on the level of solar wind turbulence in the inner heliosheath.
Chalov Sergei V.
Fahr Hans Jörg
Izmodenov Vladislav V.
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