Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983ap%26ss..90...59k&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 90, no. 1, Feb. 1983, p. 59-66.
Astronomy and Astrophysics
Astrophysics
8
Astronomical Models, Binary Stars, Cosmic Rays, Energetic Particles, Neutron Stars, Particle Acceleration, Abundance, Galactic Radiation, High Energy Electrons, Ion Injection, Magnetic Flux, Molecular Clouds, Nuclear Particles, Positrons, Pulsars, Shock Wave Interaction, Stellar Magnetic Fields
Scientific paper
The acceleration mechanism of cosmic rays is discussed. Parker's (1965, 1979) suggestion that buoyant reordering of magnetic flux tubes is the dominant transport mechanism of cosmic rays out of the galactic disk is reinforced. Arguments that the cosmic ray sources are located inside the molecular cloud layer are presented, and the shock accretion model as the primary mechanism of cosmic ray acceleration is argued against. A model of cosmic ray acceleration is presented in which the ionic component of the rays is injected by young binary neutron stars whose rotating magnetospheres act like grindstones in the wind of their companion. The model appears versatile enough to be consistent with the observed abundance anomalies. While pulsars are probably not the dominant source of cosmic ray nuclei, they may be the dominant source of cosmic ray electrons and positrons above about 30 GeV.
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