Ionic models of cosmic ray sources

Details Ionic models of cosmic ray sources Ionic models of cosmic ray sources

Mar 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...144...64a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 144, no. 1, March 1985, p. 64-71.

Astronomy and Astrophysics

Astrophysics

3

Abundance, Astronomical Models, Cosmic Plasma, Cosmic Rays, Ionization, Charge Exchange, Galactic Cosmic Rays, Ion Production Rates, Ionization Potentials, Recombination Coefficient, Temperature Distribution

Scientific paper

The authors present an update version of the Cassé and Goret (1978) ionization model of cosmic ray sources, with emphasis on the relevant atomic parameters (rates of ionization, recombination, and charge exchange). The cosmic ray source/local galactic (CRS/LG) abundance ratio is identified for each element of interest with the ionic fraction of this element, averaged over a temperature distribution. The authors try to find temperature conditions such that the CRS/LG ratios are reasonably reproduced from hydrogen to nickel. An exponential temperature distribution of the form exp(-T/7000K) with 5000K ≤ T ≤ 100,000K leads to a satisfactory fit for most of the elements.

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