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Copernicus observational searches for OH and H2O in diffuse cloudsAn intensive search for OH and H2O in the directions of sigma Sco, alpha Cam, and micron Per was undertaken with the Copernicus satellite. Multiple scans were carried out over the wavelength region for the expected absorption features due to the OH D-X and H2O C-X transitions. The feature due to OH was detected marginally towards sigma Sco, and only an upper limit can be given towards alpha Cam. H2O was not detected in any of the stars at the signal level accumulated. The OH abundance towards sigma Sco and the respective lower limits for the OH/H2O ratios are discussed with regard to the extant models for the steady state abundances of OH and H2O, and shown not to be inconsistent with ion-molecule schemes.
Document ID
19840003936
Acquisition Source
Legacy CDMS
Document Type
Preprint (Draft being sent to journal)
Authors
Smith, W. H. (Washington Univ. Saint Louis, MO, United States)
Snow, T. P., Jr. (Colorado Univ. Boulder, United States)
Date Acquired
September 4, 2013
Publication Date
January 1, 1983
Subject Category
Astronomy
Report/Patent Number
NASA-CR-170601
NAS 1.26:170601
Accession Number
84N12004
Funding Number(s)
CONTRACT_GRANT: NSG-5187
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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