Models of four highly obscured compact H II regions

Details Models of four highly obscured compact H II regions Models of four highly obscured compact H II regions

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...281..184s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 281, June 1, 1984, p. 184-193.

Astronomy and Astrophysics

Astronomy

20

Abundance, Astronomical Models, H Ii Regions, Radio Sources (Astronomy), Interstellar Matter, Photoionization, Radiant Flux Density, Radio Spectra, Stellar Temperature

Scientific paper

Models are constructed for three stars in order to determine their properties and elemental abundances through comparisons of model predictions and observations. By comparing predicted line fluxes with those observed, it is noted that oxygen is apparently enhanced by a factor of 2 in W3A, and of 4 in G75.84 + 0.40A and G29.9 - 0.0. The first two cases are based on the premise that the O(++)-emitting regions are as clumped as those of S(++). The H II regions all need more than one main sequence star or one unusually large star to provide the observed radio luminosity.

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