Abundances of the heavy elements in the Magellanic Clouds. I. Metal abundances of F-type supergiants

Journal Article · Tue Aug 01 04:00:00 EDT 1989 · Astrophysical Journal, Supplement Series; (USA)

DOI:https://doi.org/10.1086/191360· OSTI ID:5475296

Russell, S C; Bessell, M S ^[1]

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1. Mount Stromlo and Siding Spring Observatories, Canberra (Australia)

Metal abundances of eight F-type supergiants in each of the Magellanic Clouds were determined using the results of high-resolution spectroscopy analysis of these stars, together with new Stromgren uvby and Cousins (1980) BVRI photometry. It was found that the mean Fe abundance (Fe/H) for the SMC is -0.65 + or - 0.2 dex, and the mean Fe abundance for the LMC is -0.30 + or - 0.2 dex. The abundances of stars in both the SMC and LMC appear relatively uniform, and the abundances of the elements relative to Fe are very similar in both Magellanic Clouds and in Canopus (the carbon-to-iron abundances are the same for all three). It was also found that Nd and Sm are overabundant in both clouds, supporting the trends found by Spite et al. (1988) for the three SMC stars they studied. 140 refs.

• OSTI ID: 5475296
• Journal Information: Astrophysical Journal, Supplement Series; (USA), Journal Name: Astrophysical Journal, Supplement Series; (USA) Vol. 70; ISSN APJSA; ISSN 0067-0049
• Country of Publication: United States
• Language: English

Related Subjects

640102 -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
CHEMICAL COMPOSITION
ELEMENTS
GALAXIES
GIANT STARS
HYDROGEN
INTERSTELLAR SPACE
IRON
LINE WIDTHS
MAGELLANIC CLOUDS
METALS
NEODYMIUM
NONMETALS
RARE EARTHS
SAMARIUM
SPACE
SPECTROSCOPY
STARS
SUPERGIANT STARS
TRANSITION ELEMENTS