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1998ApJ...500..280F - Astrophys. J., 500, 280-290 (1998/June-2)
Infrared spectroscopy of ultracompact H II regions.
FAISON M., CHURCHWELL E., HOFNER P., HACKWELL J., LYNCH D.K. and RUSSELL R.W.
Abstract (from CDS):
Spherically symmetric dust shell models were calculated to obtain the best fits to those nebulae for which distances are known, and spectral energy distributions are available in the range of 1 mm to 1 µm. The models are used to infer properties of the dust cocoon such as the distribution of density and temperature with radius, shell thickness, outer shell radius, and dust abundances. Our results are consistent with previous models that predict large dust cocoons with central cavities, sharp temperature gradients, and approximately constant density in the outer regions.
Abstract Copyright: ∼
Journal keyword(s): Stars: Circumstellar Matter - ISM: Dust, Extinction - ISM: H II Regions - Infrared: ISM: Lines and Bands - ISM: Abundances
CDS comments: Table 1 : IRAS 18006+2422 and 18174+1612 misprint for 18006-2422 and 18174-1612
Simbad objects: 35
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