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Observations of the J = 2→1 transitions of 12C16O and 12C18O towards galactic H II regions

White, G. J.; Watt, G. D.; Beckman, J. E.; Rose, W. B. and van Vliet, A. H. F. (1980). Observations of the J = 2→1 transitions of 12C16O and 12C18O towards galactic H II regions. Astronomy & Astrophysics, 84(1-2) pp. 212–215.

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Observations are reported of the J = 2→1 transitions of CO and 12C18O at 230 and 219 GHz respectively from a number of galactic sources. A map of the central 1/2° × 1/2° of the Orion A molecular cloud is presented. The spectra are interpreted to derive molecular densities and abundance ratios in the molecular clouds observed.

Item Type: Journal Article
Copyright Holders: 1980 European Southern Observatory
ISSN: 1432-0746
Keywords: astrophysics; carbon monoxide; HII regions; interstellar gas; molecular gases; abundance; angular velocity; electron transitions; hydrogen ions
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 33813
Depositing User: G. J. White
Date Deposited: 11 Jun 2012 12:48
Last Modified: 26 Feb 2016 03:05
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