Other
Scientific paper
Oct 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...273..576m&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 273, Oct. 15, 1983, p. 576-589.
Other
84
Galactic Structure, Star Distribution, Stellar Spectrophotometry, Wolf-Rayet Stars, Chemical Composition, Milky Way Galaxy, Stellar Evolution, Stellar Mass, Stellar Spectra
Scientific paper
Absolute spectrophotometry of 41 newly confirmed Wolf-Rayet stars in M33 is presented, as are additional data on the 38 objects previously known. Both WC and WN types are found, although the late WN stars are rare, and the late WC stars are absent. The spectra are otherwise similar to Wolf-Rayet stars found in the Galaxy and the Large Magellanic Cloud. The ratio of WC to WN stars tends to decrease with increasing galactocentric distance within M33, similar to what is inferred in the Galaxy. This may represent differences in the initial mass functions of the most massive stars rather than gradients in the initial chemical composition of these recently formed stars.
Conti Peter S.
Massey Pedro
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