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An Optical and Ultraviolet Study of Nine Low-Excitation Planetary Nebulae
Published online by Cambridge University Press: 18 September 2017
Extract
Ultraviolet and optical observations of seven very low excitation nebulae (He 2-131, He 2-138, TC 1, M 1-11, M 1-12, M 1-26, H 2-1) and of two low-excitation nebulae (IC 418 and He 2-108) are discussed.
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- Copyright © Reidel 1983
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