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The Distance Scale of Planetary Nebulae

Published online by Cambridge University Press:  22 September 2016

Wm. Liller
Wm. Liller*
Affiliation:
Center for Astrophysics Cambridge, Massachusetts, U.S.A.

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The spectacular success of the so-called Shklovsky method of finding distances to planetary nebulae which are optically thin to the Lyman continuum (Shklovsky 1956; see also Minkowski and Aller 1954) has produced within us a rather breath-taking boldness. Following the careful application of this method to more than 600 planetaries by Cahn and Kaler (1971), we now have the audacity to use planetaries as reliable distance indicators to derive an improved model of our own galaxy (Cahn 1976), trace the evolution of stars in their post-giant stages (O'Dell 1974, Cahn and Wyatt 1976), and even determine distances to other stellar systems (Ford, Jenner, and Epps 1973). At the Tatranská Lomnica meeting 10 years ago, there seemed little hope that one day soon planetary nebulae distances would become reliable. That day is near if not here already.

Type
Session I: The Distribution of Planetary Nebulae
Information
Symposium - International Astronomical Union , Volume 76: Planetary Nebulae , 1978 , pp. 35 - 46
Copyright
Copyright © Reidel 1978 

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