Stochastic acceleration of heavy ions with variable charge

Details Stochastic acceleration of heavy ions with variable charge Stochastic acceleration of heavy ions with variable charge

Jun 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997azh....74..440o&link_type=abstract

Astronomicheskij Zhurnal, vol. 74, p. 440

Astronomy and Astrophysics

Astronomy

2

Heavy Ions, Particle Acceleration, Ion Distribution, Ion Motion, Solar Flares, Cosmic Plasma, Dense Plasmas, Stochastic Processes, Cold Plasmas, Cosmic Rays

Scientific paper

The spectra of stochastically accelerated heavy charged particles are determined, taking account of adiabatic deceleration and their escape from the acceleration region. The possibility that the ion charge may change as they move through a relatively dense and cold plasma is also taken into account. The stationary spectra in a two-level model (He(+) and He(2+)) are different near the injection momentum. Heavier ions (a multi-level model) have both energetic and charge distributions that are close to Gaussian, with a weak asymmetry relative to the mean charge. The dependence of the mean charge on the ion momentum provides a diagnostic for the acceleration region and the propagation of solar cosmic rays during solar flares.

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