1993•Unpublished venueRequires access
VLA observations of the 8 GHz rotationally excited OH lines toward W 3(OH).
A. Baudry, Karl M. Menten, C. Malcolm Walmsley, Thomas L. Wilson
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Abstract
The 2 π 1/2 , J = 3/2 and J = 5/2 main lines of OH and the continuum, at 8 MHz, have been mapped toward W3(OH) with an angular resolution of 0.3″ and a resolution of 0.45-0.47 km s −1 . The continuum maps produced in conjunction with each spectral line map were combined. In addition to the four previously found continuum features, we have tentatively detected a new weak, unresolved source. This coincides with a weak 1.7 MHz OH maser, about 7″ NE of W3(OH). The 2 π 1/2 , J = 3/2, F = 2-2 and F = 1-1 main lines at 7820 and 7762 MHz, respectively, are found in absorption toward the western part of W3(OH), and both show a clumpy structure. There is a weak emission feature at 7820 MHz, about 0.5″ NE of the northern absorption clump