Abundances from B stars of the Magellanic Clouds

Details Abundances from B stars of the Magellanic Clouds Abundances from B stars of the Magellanic Clouds

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...234..109r&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 234, no. 1-2, Aug. 1990, p. 109-118.

Astronomy and Astrophysics

Astrophysics

51

Abundance, B Stars, Magellanic Clouds, Stellar Composition, Astronomical Photometry, Atmospheric Models, Globular Clusters, H Ii Regions, Magnetohydrodynamic Turbulence, Stellar Models

Scientific paper

The present model atmosphere analyses of the two B giants NGC 1818/D12 and NGC 330/3, which respectively appear to be members of blue globular clusters of the LMC and SMC, are conducted differentially with respect to the Galactic star HR 3663. A deficiency of the metals of Delta log epsilon -0.8 for the LMC and -1.1 for the SMC star is noted; the CNO pattern is also noteworthy in that N is considerably, and O significantly, overabundant. Model parameters are combined with distance and luminosity data to obtain 22.8 solar radii and 15 solar mass dimensions for NGC 1818/D12, and 23.9 solar radii and 19 solar masses for NGC 330/3.

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