The Comparable Analysis of the Cepheids and Non-Variable Supergiants from the Instability STRIP.I.

Details The Comparable Analysis of the Cepheids and Non-Variable Supergiants from the Instability STRIP.I. The Comparable Analysis of the Cepheids and Non-Variable Supergiants from the Instability STRIP.I.

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996ap%26ss.245...61a&link_type=abstract

Astrophysics and Space Science, Volume 245, Issue 1, pp.61-80

Astronomy and Astrophysics

Astrophysics

10

Scientific paper

The elemental abundances, temperatures, gravities and microturbulence velocities were derived for 14 non-variable supergiants from the Cepheids' instability strip and two hotter supergiants. For 8 stars the abundances were determined for the first time. The comparable analysis of the program stars' chemical composition and that of the small-amplitude Cepheids has shown that there is no essential differences in the elemental abundances for two stellar groups. Some discussion of the phenomenon of non-variable supergiants in the instability strip is given.

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