THE COMPARABLE ANALYSIS OF THE CEPHEIDS AND NON-VARIABLE SUPERGIANTS FROM THE INSTABILITY STRIP .1.

Authors
ANDRIEVSKY SM KOVTYUKH VV
Citation
Sm. Andrievsky et Vv. Kovtyukh, THE COMPARABLE ANALYSIS OF THE CEPHEIDS AND NON-VARIABLE SUPERGIANTS FROM THE INSTABILITY STRIP .1., Astrophysics and space science, 245(1), 1996, pp. 61-80
Citations number
39
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astrophysics and space science → ACNP
ISSN journal
0004640X
Volume
245
Issue
1
Year of publication
1996
Pages
61 - 80
Database
ISI
SICI code
0004-640X(1996)245:1<61:TCAOTC>2.0.ZU;2-D
Abstract
The elemental abundances, temperatures, gravities and microturbulence velocities were derived for 14 non-variable supergiants from the Cephe ids' instability strip and two hotter supergiants. For 8 stars the abu ndances were determined for the first time. The comparable analysis of the program stars' chemical composition and that of the small-amplitu de Cepheids has shown that there is no essential differences in the el emental abundances for two stellar groups. Some discussion of the phen omenon of non-variable supergiants in the instability strip is given.