Collision strengths for 1199 and 1729 of S III

Details Collision strengths for 1199 and 1729 of S III Collision strengths for 1199 and 1729 of S III

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...284..435h&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 284, Sept. 1, 1984, p. 435-437.

Astronomy and Astrophysics

Astrophysics

11

Io, Oscillator Strengths, Sulfur, Ultraviolet Spectra, Atomic Energy Levels, Electron Impact, Electron Scattering, Jupiter (Planet), Line Spectra, Scattering Cross Sections, Temperature Dependence, Transition Probabilities, Wave Functions

Scientific paper

Collision strengths are calculated for the S III ground state from electron impact excitation in the Io torus. The study is based on data taken at 119.9 nm and 172.9 nm by the IUE spacecraft and with the rocket-borne Faint Object Telescope. The collision strengths of the 3p(2)3P3s3p(3)(5)S(4) and (3)P-3s3p(3)(3)D(0) UV lines are derived from a three-state close coupling aproximation. A Gailitis averaging scheme accounts for resonance effects in the forbidden transition. The calculated intensities of the two transitions at an electron temperature of 80,000 K are in agreement with observed intensities.

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