EAS Publications Series
Volume 38, 2009Nonlinear Pulsations and Hydrodynamics of Cepheids
|Page(s)||99 - 106|
|Published online||15 August 2009|
M. Goupil, Z. Kolláth, N. Nardetto and P. Kervella (eds)
EAS Publications Series, 38 (2009) 99-106
Novel Aspects of Cepheid Metallicity
Konkoly Observatory of the
Hungarian, Academy of Sciences, PO Box 67, 1525 Budapest XII, Hungary
It is shown that – in addition to the long-known effect of metallicity on luminosity – the abundance of heavy-elements has an influence on both the light-curve stability of anomalous Cepheids and the period ratio of double-mode Cepheids. Moreover, metallicity is an important controlling factor of the value of the pulsation amplitude of Cepheids.
© EAS, EDP Sciences, 2009
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