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C II 158 micron and O I 63 micron observations of NGC 7023 - A model for its photodissociation regionEmission in the far IR fine-structure lines of O I (63 microns) and C II (158 microns) from the bright optical reflection nebula NGC 7023 has been observed. It is suggested that this emission arises in a warm, atomic photodissociation region produced by the interaction of the UV radiation of the illuminating star with a molecular cloud. The density and temperature in the photodissociation region is estimated and a model for the region is constructed.
Document ID
19890029300
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/166878
Authors
Chokshi, A. (NASA Ames Research Center Moffett Field, CA, United States)
Tielens, A. G. G. M. (NASA Ames Research Center Moffett Field, CA, United States)
Werner, M. W. (NASA Ames Research Center Moffett Field, CA, United States)
Castelaz, M. W. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 14, 2013
Publication Date
November 15, 1988
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 334
ISSN: 0004-637X
Subject Category
Astrophysics
Report/Patent Number
ISSN: 0004-637X
Accession Number
89A16671
Funding Number(s)
CONTRACT_GRANT: NCC2-407
Distribution Limits
Public
Copyright
Other

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