Nebular and Auroral Emission Lines of [Ar<scp>iv</scp>] in the Optical Spectra of Planetary Nebulae

F. P. Keenan, F. C. McKenna, K L Bell, C A Ramsbottom, A. W. Wickstead, L. H. Aller, Siek Hyung

The Astrophysical Journal · 1997 · 34 citations · 22 references

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Abstract

Recent R-matrix calculations of electron impact excitation rates in Ar IV are used to calculate the emission-line ratio : ratio diagrams and where (R

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