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International Ultraviolet Explorer Satellite Observations of Seven High-Excitation Planetary Nebulae
DOI: 10.1073/pnas.77.3.1231
Bibcode: 1980PNAS...77.1231A
Keyes, C. D.; Aller, L. H.
Observations of seven high-excitation planetary nebulae secured with the International Ultraviolet Explorer (IUE) satellite were combined with extensive ground-based data to obtain electron densities, gas kinetic temperatures, and ionic concentrations. We then employed a network of theoretical model nebulae to estimate the factors by which observe…
1980
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Proceedings of the National Academy of Science
IUE
20