A spectroscopic study of the metallicity of Cepheids

Details A spectroscopic study of the metallicity of Cepheids A spectroscopic study of the metallicity of Cepheids

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pazh...17..536k&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 17, June 1991, p. 536-543. In Russian. In Russian. In Russian.

Astronomy and Astrophysics

Astronomy

3

Cepheid Variables, H Alpha Line, Metallic Stars, Stellar Atmospheres, Stellar Temperature, F Stars, Galactic Structure, K Stars, Stellar Spectra

Scientific paper

The model atmosphere method is used to determine the metallicity of 17 Cepheids of type I population on the basis of results of spectroscopic observations with the main stellar spectrograph of the 6-m telescope. Systematic errors of the metallicity associated with the temperature determination method are revealed. On the basis of data for Cepheids contributed by Luck and Lambert (1981) and Harris and Pilachowski (1984), the metallicity gradient in the Galactic disk is estimated at 0.06/kps.

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