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Emissivities of Fe III and Fe VI and Iron Abundances in Planetary Nebulae

Published online by Cambridge University Press:  22 September 2016

R.H. Garstang  and
W. Derek Robb
R.H. Garstang
Affiliation:
Joint Institute for Laboratory Astrophysics, University of Colorado, Boulder
W. Derek Robb
Affiliation:
Joint Institute for Laboratory Astrophysics, University of Colorado, Boulder (Now at Los Alamos Scientific Laboratory, New Mexico)

Extract

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We have calculated electron impact excitation cross sections between most of the low metastable levels of the 3d6 configuration in Fe III and of the 3d3 configuration in Fe VI have also been computed. The statistical equilibrium equations have been solved for a range of electron temperatures and electron densities, and the resulting level populations used to calculate emissivities for the forbidden lines of Fe III and Fe VI. Comparisons with observed line intensities and abundance determinations in planetary nebulae are in progress. (Paper submitted to The Astrophysical Journal.)

Type
Session III: Physical Processes
Information
Symposium - International Astronomical Union , Volume 76: Planetary Nebulae , 1978 , pp. 159 - 160
Copyright
Copyright © Reidel 1978