Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...259..617p&link_type=abstract
Astrophysical Journal, Part 1, vol. 259, Aug. 15, 1982, p. 617-624.
Astronomy and Astrophysics
Astrophysics
181
Astronomical Maps, Interstellar Matter, Kinematics, Molecular Clouds, Orion Nebula, Sulfur Oxides, Angular Resolution, Astronomical Models, Brightness Temperature, Hydrogen Clouds, Interferometry, Molecular Excitation
Scientific paper
The Hat Creek inteferometer was used to map the 86 GHz, 2(2)-1(1) line of SO toward the Kleinmann-Low Nebula with an angular resolution of 6 x 6 arcsec. The 'pedestal' component of the SO emission arises from a region with a FWHM size of 11 x 19 arcsec, centered within a few arcsec of the IR source IFc2. This region is extended in a NE-SW direction, perpendicular to the two lobes of vibrationally excited H2 emission. The peak brightness of the SO line is about 50 K. The maps show evidence of a systematic velocity structure across KL. Emission to the NW of IRc2 tends to be redshifted, while emission to the SE is blueshifted. The velocity shifts are consistent with a model in which the SO emission arises from an expanding 'doughnut' of gas centered near IRc2.
Baud B.
Bieging John H.
Ho Pak Tung
Plambeck Richard L.
Vogel Stuart N.
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