The neutral oxygen spectrum. 1: Collisionally excited level populations and line intensities under optically thin conditions

Details The neutral oxygen spectrum. 1: Collisionally excited level populations and line intensities under optically thin conditions The neutral oxygen spectrum. 1: Collisionally excited level populations and line intensities under optically thin conditions

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apjs...96..325b&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 96, no. 1, p. 325-341

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Atomic Collisions, Atomic Excitations, Neutral Particles, Optical Thickness, Oxygen, Oxygen Spectra, Radiation Sources, Computerized Simulation, Electron Density (Concentration), Electron Energy, Line Spectra

Scientific paper

This is the first paper in a projected program to produce quantitative information on the spectrum of the neutral oxygen atom under a variety of excitation conditions. Radiative rates and effective collision strengths are assembled from the recent literature where available, or are calculated for as yet untreated transitions using the University College superstructure/distorted-wave computer package, to produce a complete set of atomic data for a 13 hybrid level model of neutral oxygen. Level populations and relative intensities for 28 allowed, inter-combination, and forbidden oxygen lines are computed, under optically thin conditions, for the electron density range 4.0 less than log Ne less than 12.0 and the electron temperature values Te = 5000, 10,000, 20,000, 50,000, and 100,000 K. Preliminary applications to observed intercombination/allowed and forbidden/allowed line ratios are discussed.

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