Detection of the CO J = 4 - 3 transition from the Kleinman-Low Nebula

Details Detection of the CO J = 4 - 3 transition from the Kleinman-Low Nebula Detection of the CO J = 4 - 3 transition from the Kleinman-Low Nebula

Aug 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a...101l...1v&link_type=abstract

Astronomy and Astrophysics, vol. 101, no. 1, Aug. 1981, p. L1-L3.

Astronomy and Astrophysics

Astronomy

11

Carbon Monoxide, Electron Transitions, Infrared Astronomy, Interstellar Gas, Molecular Clouds, Nebulae, Brightness Temperature, Gas Temperature, Line Spectra, Spectrum Analysis

Scientific paper

The detection of the CO J = 4 - 3 rotational transition in the Kleinman-Low Nebula of the Orion Molecular Cloud is reported. Observations were obtained in March, 1980 using the 3.8-m U.K. Infrared Telescope at Mauna Kea with a heterodyne receiver at a beamwidth (FWHM) of 35.4 arcsec and a frequency of 461 GHz. Based on comparisons with (C-12)O and (C-13)O line intensities measured in the J = 1 - 0 transition, the high-velocity (C-12)O source detected in the present investigation is calculated to have a minimum gas kinetic temperature of about 600 K and a minimum CO column density of about 7 x 10 to the 18th/sq cm.

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