Physics
Scientific paper
Sep 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984iaus..108..385w&link_type=abstract
IN: Structure and evolution of the Magellanic Clouds; Proceedings of the Symposium, Tuebingen, West Germany, September 5-8, 1983
Physics
1
B Stars, H Ii Regions, Magellanic Clouds, Star Clusters, Stellar Evolution, Stellar Mass Ejection, H Alpha Line, Lyman Spectra, Molecular Clouds, O Stars, Stellar Luminosity, Stellar Spectrophotometry, Stellar Winds
Scientific paper
Empirical calibrations based on prior studies of Galactic OB Stars are used to determine the integrated stellar wind mechanical luminosity (Lw) and the integrated Lyman continuum photon luminosity (S-star) for 10 OB clusters in the LMC. These values of Lw and S-star, together with narrow band H-alpha surface photometry of an overlapping sample of 15 LMC H II regions, are used to show that the large shell-like H II regions, in the LMC are stellar wind bubbles three to five million years old. In order to reproduce the general properties of these H II shells, a thick cushion of shocked stellar wind gas must have been present on the inside of the shell for most of the lifetime of the nebula, and the shell itself must be ram pressure confined by the H I/molecular cloud out of which it formed.
Dopita Mike A.
Wilson R. G. I.
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