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Infrared emission and the destruction of dust in HII regions

Wiebe, D. S.; Kirsanova, M. S.; Pavlyuchenkov, Ya. N.

The generation of infrared (IR) radiation and the observed IR-intensity distribution at wavelengths of 8, 24, and 100 µm in the ionized hydrogen region around a young, massive star is investigated. The evolution of the HII region is treated using a self-consistent chemical-dynamical model in which three dust populations are included—large silicate…