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Title: Far-infrared line and dust emission from H II regions and photodissociation regions

We explore the effect of varying the spectral energy distribution of the incident continuum, by simultaneously and self-consistently computing the structure of an H II region and a photodissociation region that are in pressure equilibrium. The results of the calculations are applied to extragalactic observations. The intensity ratio diagrams of far-infrared (FIR) emission for Herschel bands (70, 110, 160, 250, 350, and 500 μm) and the contribution from H II regions for these specific FIR emissions are presented for the first time. With these diagrams, we compare the predicted FIR continuum intensity ratios of M82 with observations by Herschel.
Authors:
 [1] ;  [2]
  1. Also at University of Chinese Academy of Sciences, 100049 Beijing, China. (China)
  2. National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 (China)
Publication Date:
OSTI Identifier:
22348497
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 779; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ATOMS; COMPARATIVE EVALUATIONS; DISSOCIATION; DUSTS; EMISSION; ENERGY SPECTRA; EQUILIBRIUM; FAR INFRARED RADIATION; PHOTOLYSIS; PHOTONS