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Planetary Nebulae and the Cosmic Distance Scale

Published online by Cambridge University Press:  30 March 2016

George H. Jacoby
George H. Jacoby*
Affiliation:
Kitt Peak National Observatory, NOAO

Abstract

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Planetary nebula luminosity functions provide very accurate distances to galaxies as judged by comparisons with other techniques, including Cepheids; systematic effects cannot be significant. The method is empirical and is a consequence of the shallow initial-final mass relationship predicted by stellar evolution and directly measured. From distances to ∼ 30 galaxies, the PNLF yields H0 = 79, in excellent agreement with recent Cepheid discoveries in Virgo.

Keywords

galaxiesdistances
Type
II. Joint Discussions
Information
Highlights of Astronomy , Volume 10: Highlights of Astronomy. As presented at the XXIInd General Assembly of the IAU, 1994 , 1995 , pp. 501 - 503
Copyright
Copyright © Kluwer 1995

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