Abstract
view Abstract Citations (87) References (15) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Consequences of a lifetime greater than 107 years for galactic cosmic rays. Jokipii, J. R. Abstract The implications of recent determinations of the cosmic-ray lifetime are discussed. It is concluded that the observations are consistent with a 'dynamical halo' model in which cosmic rays are confined in an outward-moving galactic halo by self-generated hydromagnetic waves. Alternative models which do not incorporate a halo, but which have the cosmic rays propagate in regions of reduced density in the galactic disk, are also briefly discussed. Publication: The Astrophysical Journal Pub Date: September 1976 DOI: 10.1086/154678 Bibcode: 1976ApJ...208..900J Keywords: Astronomical Models; Cosmic Rays; Galactic Radiation; Magnetohydrodynamic Waves; Radiative Lifetime; Disks (Shapes); Galactic Structure; Halos; Particle Flux Density; Spiral Galaxies; Space Radiation full text sources ADS |
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