The metallicity dependence of the Cepheid PL-relation

M. A. T. Groenewegen, M. Romaniello, F. Primas +1

A sample of 37 Galactic, 10 LMC and 6 SMC cepheids is compiled for which individual metallicity estimates exist and BVIK photometry in almost all cases. The Galactic cepheids all h…