Some physical parameters for the atmosphere of UV Cassiopeiae, an R Coronae Borealis star

Details Some physical parameters for the atmosphere of UV Cassiopeiae, an R Coronae Borealis star Some physical parameters for the atmosphere of UV Cassiopeiae, an R Coronae Borealis star

Apr 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981sval....7..126o&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 7, Apr. 1981, p. 228-230.) Soviet Astronomy Letters, vol. 7, Mar.-Apr. 1981, p. 126, 12

Physics

2

Atmospheric Physics, R Coronae Borealis Stars, Stellar Atmospheres, Stellar Spectra, Supergiant Stars, Visible Spectrum, Atmospheric Composition, Cassiopeia Constellation, Line Spectra, Metallic Stars, Variable Stars

Scientific paper

The differential curve-of-growth method is used to analyze the spectrum of UV Cas in the 4100-6700 A region at 28 A/mm dispersion. In addition to the determination of a G4-G5 spectral type, a microturbulent velocity of 11 km/sec, and an electron pressure log p(e) of -1.1, it is found that the atmospheres of UV Cas and R CrB have almost the same Ti, Sc, and Ba abundances, and a similarity in each of these abundances to solar values, while the C/Fe ratio in UV Cas is about 100 times that of the sun.

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