The infrared emission lines of H2 |
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| Authors: | Q. Zeng |
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| Affiliation: | (1) Purple Mountain Observatory, Nanjing, China |
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| Abstract: | The photodissociation regions located between ionized regions and molecular clouds are studied by using a one-dimensional model where molecular H2 are formed on the dust grains, and destructed by photodissociation. The escape probability method is used for the line transfer. The excitation of infrared emission lines of H2 by UV fluorescence in M17, by shock heating in Orion KL and mainly by UV fluorescence in NGC 2023 are discussed. |
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