The nature of RV Tauri variables. II- Properties of the peculiar F stars

Details The nature of RV Tauri variables. II- Properties of the peculiar F stars The nature of RV Tauri variables. II- Properties of the peculiar F stars

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989aj.....98..324c&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 98, July 1989, p. 324-330.

Astronomy and Astrophysics

Astronomy

18

F Stars, Peculiar Stars, Stellar Atmospheres, Stellar Oscillations, Taurus Constellation, Variable Stars, Astronomical Photometry, Cepheid Variables, Globular Clusters, Metallicity

Scientific paper

Basic atmospheric parameters for six RV Tauri variables are considered. The Fe/H abundance ratios for the stars are found to be between -1 and - 1.7, inclusively. Stars of the Preston (1962) type B and C subclasses do not appear segregated by metallicity. In comparison to the cooler Preston type A stars, types B and C are shown to be more metal poor by a factor of 10, on average. The results are consistent with the theory that RV Tau type B and C variables are a direct evolutionary analog to the cluster type II Cepheids.

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