Abundances of some s-process elements on the M giant Beta Pegasi

Astronomy and Astrophysics – Astronomy

Scientific paper

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Giant Stars, M Stars, Metallicity, Spectral Line Width, Stellar Composition, Stellar Spectra, Abundance, Carbon Stars, Stellar Atmospheres

Scientific paper

Equivalent widths of neutral molybdenum and ruthenium lines have been calculated for an LTE model atmosphere corresponding to the spectral class and the luminosity of β Peg. By comparison with the observed equivalent widths the abundances of these s-process elements in the atmosphere of β Peg are found to be 20 times less than in the solar atmosphere.

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