A new calculation of the cosmic-ray antiproton spectrum in the Galaxy and heliospheric modulation effects on this spectrum using a drift plus wavy current sheet model

Journal Article · Fri Sep 01 00:00:00 EDT 1989 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/167842· OSTI ID:5288904

Webber, W R; Potgieter, M S ^[1]

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1. New Hampshire Univ., Durham (USA)

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. 28 refs.

• OSTI ID: 5288904
• Journal Information: Astrophysical Journal; (USA), Vol. 344; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANTIPROTONS
SPECTRA
COSMIC RADIATION
ACCELERATION
ELECTRIC CURRENTS
HELIOSPHERE
INTERSTELLAR SPACE
MATHEMATICAL MODELS
MILKY WAY
MODULATION
ANTIBARYONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
ATMOSPHERES
BARYONS
CURRENTS
ELEMENTARY PARTICLES
FERMIONS
GALAXIES
HADRONS
IONIZING RADIATIONS
NUCLEI
NUCLEONS
RADIATIONS
SOLAR ATMOSPHERE
SPACE
640101* - Astrophysics & Cosmology- Cosmic Radiation