Calcium abundances of F supergiants in the Magellanic Clouds

Journal Article · Tue Jul 01 00:00:00 EDT 1980 · Astron. J.; (United States)

DOI:https://doi.org/10.1086/112746· OSTI ID:5297463

Smith, H A

Low-dispersion image tube spectra have been obtained for six supergiant stars in the Large Magellanic Cloud and for four supergiants in the Small Magellanic Cloud. These stars are of spectral type F, though differences from galactic MK standards make precise classification difficult. The observed calcium K-line and Balmer-line strengths have been compared with simple synthetic spectra based on the model atmospheres of Kurucz. For the LMC stars, (Ca/H)=-0.2 +- 0.1; for the SMC stars, (Ca/H)=-0.6 +- 0.1. Better model atmospheres and synthetic spectra for supergiant stars are desirable to improve these values.

• Research Organization: Mount Wilson and Las Campanas Observatories, Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, California 91101
• OSTI ID: 5297463
• Journal Information: Astron. J.; (United States), Vol. 85:7
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CALCIUM
COSMOCHEMISTRY
MAGELLANIC CLOUDS
SUPERGIANT STARS
STELLAR ATMOSPHERES
ABUNDANCE
BALMER LINES
MILKY WAY
SPECTROSCOPY
STAR MODELS
ALKALINE EARTH METALS
ATMOSPHERES
CHEMISTRY
ELEMENTS
GALAXIES
GIANT STARS
MATHEMATICAL MODELS
METALS
STARS
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources