Metallicity effects on distances based on double-mode Cepheids

Details Metallicity effects on distances based on double-mode Cepheids Metallicity effects on distances based on double-mode Cepheids

2005-11-17

arxiv.org/abs/astro-ph/0511524v1

Mem.Soc.Ast.It.77:160-163,2006

Astronomy and Astrophysics

Astrophysics

4 pages with 4 figures; to appear in the Proceedings of the conference "Stellar Pulsation and Evolution", held in Rome, June 1

Scientific paper

We test the effect of systematic metallicity difference between the two types
of double-mode Cepheids in the Magellanic Clouds. We show that lowering the
metallicity for the short-periodic Cepheids leaves the distances at their
canonical values and, at the same time, improves the agreement between the
observed and model periods.

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