Abstract
view Abstract Citations (12) References (21) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Origin of Cosmic Rays. III. Particle Acceleration by Global Spiral Shocks Duric, Nebojsa Abstract Cosmic-ray acceleration by global spiral shocks in galactic disks is investigated using existing theory. The diffusive shock acceleration (DSA) mechanism is discussed in the low-velocity regime represented by density wave shocks. It is found that a medium of T ≍ 104 K, partially to fully ionized, supports the DSA mechanism. It is concluded that existing theory permits particle acceleration by global, slow moving shocks as suggested by observational work on the spiral galaxy NGC 3310. Publication: The Astrophysical Journal Pub Date: May 1986 DOI: 10.1086/164148 Bibcode: 1986ApJ...304..111D Keywords: COSMIC RAYS: GENERAL; GALAXIES: INDIVIDUAL NGC NUMBER: NGC 3310; PARTICLE ACCELERATION; RADIO SOURCES: GALAXIES; SHOCK WAVES full text sources ADS | data products SIMBAD (1) NED (1) Related Materials (2) Part 1: 1986ApJ...304...82D Part 2: 1986ApJ...304...96D
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