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Dust continuum spectra from model HII regions (1989)

Emery, R. J. ; Aannestad, P. A.

In: CASI

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Publication Date: 2013-08-29

Description: The infrared spectrum emitted by nebular dust, heated by the ionizing stars in H II blisters and spherical H II regions, is calculated for various model parameters. Absorption of the non-ionizing radiation in a neutral layer is included. Heating by the Lyman alpha photon field is taken into account. The dust is composed of silicate and graphite grains, and evaporation of the grains in the inner region is considered. The models are presented with a view to interpretation of infrared observations of dusty H II regions and can be applied directly to the infrared astronomy satellite survey data. The continuum emission is compared with calculated fine structure line emission.

Keywords: ASTRONOMY

Type: ESA, Infrared Spectroscopy in Astronomy; p 133-139

Format: text

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