Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...118..203k&link_type=abstract
Astronomy and Astrophysics, vol. 118, no. 1, Feb. 1983, p. 203-205.
Astronomy and Astrophysics
Astrophysics
9
Emission Spectra, H Ii Regions, Line Spectra, Metallicity, Nebulae, Stellar Atmospheres, Abundance, Cosmic Gases, Electron Energy, Infrared Spectra, Light (Visible Radiation)
Scientific paper
Model H II regions, based on line-blanketed LTE model atmospheres of the central star, have been calculated for varying nebular and stellar metal contents. The nebular ionization structure is dominated by the metallicity of the star, whereas the nebular electron temperature is primarily determined by the metallicity of the gas. The strengths of emission-lines relative to H mainly depend on the electron temperature and, hence, are much more sensitive to the nebular than to the stellar metallicity.
Koeppen Joachim
Schmid-Burgk Johannes
Scholz Marek
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