Computer Science
Scientific paper
Oct 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982nyasa.395..210m&link_type=abstract
(NASA, National Science Foundation, New York Academy of Sciences, et al., Symposium on the Orion Nebula to Honor Henry Draper, N
Computer Science
Ammonia, Gas Dynamics, Interstellar Gas, Molecular Clouds, Orion Nebula, Brightness Temperature, Metastable State, Optical Thickness, Stellar Mass, Temperature Distribution
Scientific paper
The results reported here are based on observations made at the VLA in September 1981 and January 1982. In its D array, the VLA was used in September 1981 to observe the central component of the (2,2) line. This central component of the (2,2) line, together with the central component of the (1,1) line and one of its hyperfine components, was observed in January 1982 after the VLA had been changed to its larger C array. The NH3-containing regions in the Orion Molecular Cloud were examined at a point 3.5 arcmin north of the Kleinmann-Low nebula with the high angular resolution of the VLA. Three small clouds were found, having linear dimensions of about 0.05 pc and and a brightness of 15-20 K; they displayed a velocity gradient ranging over 1.5 km/s. If this is interpreted as rotation, cloud masses near one solar mass are suggested, and the opacity in (C-18)O is near unity.
Harris Andrew I.
Matsakis Demetrios N.
Palmer Patrick
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