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Mean Electron Densities, Distances and Filling Factors for Galactic Planetary Nebulae
Published online by Cambridge University Press: 07 August 2017
Abstract
Mean electron densities are presented for over 100 planetary nebulae (PN). Distances to the majority of these PN are then derived, based on calibrations from observations of Magellanic Cloud PN. Absolute radii and filling factors have also been determined. A trend is seen in that for larger radii, smaller filling factors are found, however we show that such a trend results from uncertainties in the observed angular diameters.
- Type
- III. Highlights on the Nebulae
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- Copyright © Kluwer 1993