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The R Coronae Borealis stars – atmospheres and abundances

Asplund, Martin; Gustafsson, Bengt; Lambert, David L; Rao, N.Kameswara


An abundance analysis of the H-deficient and He- and C-rich R Coronae Borealis (R CrB) stars has been undertaken to examine the ancestry of the stars. The investigation is based on high-resolution spectra and line-blanketed H-deficient model atmospheres. The models successfully reproduce the flux distributions and all spectral features, both molecular bands and high-excitation transitions, with one important exception, the Ci lines. Since photoionization of Ci dominates the continuous opacity,...[Show more]

CollectionsANU Research Publications
Date published: 2000
Type: Journal article


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