The lithium abundance in weak-G band stars

Astronomy and Astrophysics – Astronomy

Scientific paper

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Abundance, Giant Stars, Lithium, Metallic Stars, Stellar Spectra, Astronomical Models, Astronomical Photometry, Carbon, Hydrogen, Nitrogen, Spectral Bands, Stellar Rotation, Thermal Neutrons

Scientific paper

Lithium abundances are derived for ten weak-G band giants. The stars are found to have at least normal lithium abundances, and may have enhanced lithium relative to normal giants of similar temperature. Also, broad lines found in the G5 giant HR 1023 can be interpreted as rotation with a variable radial velocity of amplitude 17 + or - 5 km/sec. Possible interpretations of these results are discussed.

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