Evidence for the stochastic acceleration of cosmic rays in supernova remnants

Details Evidence for the stochastic acceleration of cosmic rays in supernova remnants Evidence for the stochastic acceleration of cosmic rays in supernova remnants

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...266..271h&link_type=abstract

Astrophysical Journal, Part 1, vol. 266, Mar. 1, 1983, p. 271-275.

Astronomy and Astrophysics

Astrophysics

16

Cosmic Rays, Magnetic Field Configurations, Particle Acceleration, Stellar Magnetic Fields, Stellar Models, Supernova Remnants, Hydrogen Clouds, Ionization, Molecular Clouds, Stochastic Processes

Scientific paper

A simple model is developed for the magnetic field structure of the old supernova remnant observed in the direction of the Per OB2 association. It is shown that the model can explain the large variation of the ionization rates in the directions of the background stars. (Zeta Per, Omicron Per, and Xi Per) if the production of H II in the neutral shell observed against these stars is due to ionization by low-energy cosmic rays produced in the highly ionized region of the supernova remnant. It is determined that stochastic acceleration by the second-order Fermi effect in the nearly fully ionized supernova remnant associated with the region will produce cosmic rays of precisely the current characteristics.

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