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Compact H II Regions: What Lies Within?

Dopita, Michael; Fischera, Joerg; Crowley, Oliver; Sutherland, Ralph; Christiansen, Jessie; Tuffs, Richard J; Popescu, Cristina C; Groves, Brent; Kewley, Lisa


This paper presents both stellar mass and H II region diagnostics based on dusty, radiation-pressure-dominated photoionization models for compact and ultracompact H II regions, and compares these with observational constraints. These models successfully reproduce the observed relationship between the density and the thickness of the ionized layer. The absorption of ionizing photons in the dusty ionized plasma makes denser ionized regions thinner than simple photoionization models would predict,...[Show more]

CollectionsANU Research Publications
Date published: 2006
Type: Journal article
Source: Astrophysical Journal, The
DOI: 10.1086/499762


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