Model calculations of dusty H II regions

Details Model calculations of dusty H II regions Model calculations of dusty H II regions

Jul 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976a%26a....50..191n&link_type=abstract

Astronomy and Astrophysics, vol. 50, no. 2, July 1976, p. 191-211.

Astronomy and Astrophysics

Astronomy

93

Astronomical Models, Cosmic Dust, H Ii Regions, Interstellar Gas, Planetary Nebulae, Density Distribution, Infrared Astronomy, Spatial Distribution, Stellar Luminosity

Scientific paper

Models of dusty H II regions consisting of uniform spherical nebula composed of gas and two types of grains, surrounding an early type star are developed. The parameters varied in the models are the amount and properties of the dust, the overall density and the density distribution, the extent of the nebula and the spectral type of the central star. The following results were reported: (1) for radiation bounded regions, the infrared luminosity is a large fraction of the luminosity of the central star; (2) the emission spectrum is not very sensitive for most parameters; and (3) the intensity distribution is a sensitive function of the relative amount of the dust components, the spatial distribution of the dust, and the extent of the nebula.

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