The chemical composition of late-type supergiants. I - Metal abundances for 14 G and K Ib stars

Details The chemical composition of late-type supergiants. I - Metal abundances for 14 G and K Ib stars The chemical composition of late-type supergiants. I - Metal abundances for 14 G and K Ib stars

Mar 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...212..743l&link_type=abstract

Astrophysical Journal, Part 1, vol. 212, Mar. 15, 1977, p. 743-753. Research supported by the Robert A. Welch Foundation

Astronomy and Astrophysics

Astrophysics

64

Abundance, Chemical Composition, G Stars, K Stars, Late Stars, Metals, Stellar Temperature, Supergiant Stars, Atmospheric Composition, Atmospheric Models, Data Reduction, Stellar Gravitation, Temperature Distribution

Scientific paper

Effective temperatures, surface gravities, and metal abundances (Z above 10) are determined for a group of 14 G and K Ib supergiants. Overall metal abundances are found to be enhanced by 0.3 dex relative to solar values. The primary uncertainty is possible systematic effective-temperature errors caused by incorrect model temperature distributions. No evidence of s-processing is found, and no correlation between C-12/C-13 ratio and any abundance is evident.

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