Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...127..113b&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 127, no. 1, Oct. 1983, p. 113-131.
Astronomy and Astrophysics
Astrophysics
49
B Stars, Emission Spectra, Interstellar Gas, Magellanic Clouds, O Stars, Diameters, H Alpha Line, H Ii Regions, Star Distribution, Stellar Evolution, Stellar Winds, Supernova Remnants, Ultraviolet Spectra
Scientific paper
The generating mechanisms of bubbles are investigated on a galaxy-wide scale for the Large Magellanic Cloud. Several formation processes for ring-shaped and filamentary emission regions are considered, and formulas are given for the time dependence of the shell radius taking the interaction of supernovas and stellar winds into account. The parameters of associations and H II regions are compiled, reduced to a homogeneous system, and presented. Correlations between association parameters and emission region parameters are investigated. It is found that stellar content versus emission region diameter, H-alpha flux versus FUV flux, star surface density versus H-alpha brightness, and FUV flux versus stellar content of blue stars all show correlations with coefficients greater than 0.4. A diameter-age diagram for bubble evolution is depicted in which the H II region evolution effect and the stellar wind effect are separated.
Braunsfurth E.
Feitzinger Johannes Viktor
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