Calculations of atomic processes in Fe XVII

Details Calculations of atomic processes in Fe XVII Calculations of atomic processes in Fe XVII

Nov 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...298..898s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 298, Nov. 15, 1985, p. 898-910. DOE-supported research.

Physics

Atomic Physics

73

Electron Recombination, High Temperature Plasmas, Ionization Cross Sections, Particle Collisions, Solar Corona, X Ray Spectra, Atomic Physics, Elastic Scattering, Iron, Plasma Density

Scientific paper

A synoptic study has been made of the neon-like ion Fe XVII in order to improve knowledge of its line production in high-temperature, low-density plasmas. The following were computed: (1) distorted wave, electron collision strengths from the ground level to all 88 levels with one n = 3 - or n = 4 electron; (2) a complete cascade matrix; (3) the contribution of resonances to the n = 3 level population rates; and (4) the resulting X-ray and EUV line emission coefficients as functions of temperature between T = 10 to the 5.6 and T = 10 to the 8.4 K. Results are presented for typical population rates, line emission coefficients fitted with a useful formula for spectrum calculations, and the dielectronic recombination rate.

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