Bifurcation, efficiency, and the role of injection in shock acceleration with the Bohm diffusion
arXiv:astro-ph/9708107 · doi:10.1086/304990
Abstract
The efficiency and uniqueness of the diffusive shock acceleration is studied on the basis of the novel kinetic solutions. These solutions obtained earlier (paper I, astro-ph/9707152) selfconsistently describe a strong coupling of cosmic rays with the gas flow. They show that the dependence of the acceleration efficiency upon physical parameters is critical in nature. In this paper we investigate a steady acceleration in the parameter space formed by the injection rate (ν), the upper cut-off momentum p_1 and the Mach number M while the flow compression R serves as an order parameter. We determine a manifold of all possible solutions in this parameter space.
24 pages, 8 PostScript figures, uses aasms4.sty, to appear in Dec. 20, 1997 issue ApJ, vol. 491
References in corpus (1)
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