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New Rest Wavelength Determinations for Seven Mid-Infrared Fine-Structure Lines by ISO-SWS

Lutz, D.; Beintema, D. A.; Feuchtgruber, H.

Observations of the planetary nebulae NGC 6302, NGC 6543, and NGC 7027 by the Short Wavelength Spectrometer (SWS) on board the Infrared Space Observatory (ISO) have been used to determine rest wavelengths of spectral lines. We report on improved accuracies for wavelengths of seven mid-infrared ionic fine-structure lines. Based on observations made…