Ammonia observations of the Orion Molecular Cloud

Details Ammonia observations of the Orion Molecular Cloud Ammonia observations of the Orion Molecular Cloud

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...234..912h&link_type=abstract

Astrophysical Journal, Part 1, vol. 234, Dec. 15, 1979, p. 912-921.

Astronomy and Astrophysics

Astrophysics

55

Ammonia, Astronomical Spectroscopy, Emission Spectra, Interstellar Gas, Metastable State, Orion Nebula, Astronomical Maps, Electron Transitions, Fine Structure, Gas Temperature, Line Spectra, Optical Thickness

Scientific paper

Emission from several metastable states of NH3 is mapped in the OMC-1 and OMC-2 regions. Rotational temperatures are deduced from a comparison of the (J, K) = (1, 1), (2, 2), and (3, 3) lines. A hot core is found at KL, embedded in the cooler OMC-1 ridge. Clumping is found to be extended over the entire OMC-1 region with only about one-tenth of the 1.4 arcmin beam filled by regions which provide most of the emission.

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