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Collisional excitation of interstellar formaldehydePrevious calculations for rates of excitation of ortho-H2CO by collisions with He have been extended to higher rotational levels and kinetic temperatures to 80 K. Rates for para-H2CO have also been computed. Pressure-broadening widths for several spectral lines have been obtained from these calculations and are found to agree with recent data within the experimental uncertainty of 10%. Excitation of formaldehyde by collisions with H2 molecules is also discussed.
Document ID
19780061844
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Green, S. (NASA Goddard Institute for Space Studies; Columbia University New York, N.Y., United States)
Garrison, B. J. (California, University Berkeley, Calif., United States)
Lester, W. A., Jr. (IBM Research Laboratories San Jose, Calif., United States)
Miller, W. H. (California, University Lawrence Berkeley Laboratory, Berkeley, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
July 1, 1978
Publication Information
Publication: Astrophysical Journal Supplement Series
Volume: 37
Subject Category
Astrophysics
Accession Number
78A45753
Funding Number(s)
CONTRACT_GRANT: NSG-7105
Distribution Limits
Public
Copyright
Other

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