Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981plap.rept..319m&link_type=abstract
In ESA Plasma Astrophys. p 319-322 (SEE N82-20030 10-88)
Astronomy and Astrophysics
Astrophysics
Gamma Ray Bursts, Interstellar Matter, Particle Acceleration, Shock Wave Interaction, Stellar Winds, Astronomical Models, Astrophysics, H Lines, Magnetohydrodynamic Waves, Nebulae, Space Plasmas, Wave Scattering
Scientific paper
An idealized model of galactic cosmic ray acceleration by stellar winds is explained. The region behind the stellar wind shock, filled with a hot, tenuous gas, forms a bubble which expands gradually into the interstellar medium. Acceleration by a plane wave is considered; all the acceleration takes place in the low density regions on both sides of the shock. The cosmic rays are accelerated at the shock boundary of the stellar winds and are partially confined in the H2 region and in the molecular cloud. The cosmic ray density near the acceleration region is high. However, the associated pressure remains low with respect to the gas pressure and its effect on the shock structure is negligible. If the particles accelerated by this mechanism are extracted from the wind, implied injection rate is very low.
Cesarsky Catherine J.
Montmerle Th.
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