Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...344..779w&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 344, Sept. 15, 1989, p. 779-785.
Astronomy and Astrophysics
Astrophysics
44
Antiprotons, Astronomical Spectroscopy, Cosmic Rays, Galactic Radiation, Particle Acceleration, Astronomical Models, Current Sheets, Heliosphere, Interstellar Matter, Milky Way Galaxy
Scientific paper
The expected interstellar antiproton spectrum arising from cosmic-ray interactions in the Galaxy is recalculated, and the modulation of both antiprotons and protons is calculated using a two-dimensional modulation model incorporating gradient and curvature drifts and a wavy current sheet as well as the usual diffusion, convection, and energy-loss effects. Significant differences in the antiproton/proton ratio for different solar magnetic field polarities are predicted as well as a 'low-energy' component for antiprotons below about 1 GeV.
Potgieter Marius S.
Webber William R.
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