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The Cepheid P–L Relation and Metallicity

Published online by Cambridge University Press:  12 April 2016

C. D. Laney*
Affiliation:
South African Astronomical Observatory, PO Box 9, Observatory 7935, South Africa

Abstract

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Baade–Wesselink radii derived using VJHK photometry are used to test the metallicity dependence of the Cepheid P–L relation using three collections of metallicity estimates from the literature. The hypothesis that Cepheids at the LMC metallicity ([Fe/H] ~ −0.2) could be several tenths of a magnitude fainter than at solar metallicity is not supported by the evidence.

Type
Part 3. Cepheids, RR Lyrae Stars, Distance Scales
Copyright
Copyright © Astronomical Society of the Pacific 2000

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