L. E. Snyder, J. M. Hollis, B. L. Ulich, F. J. Lovas, D. R. Johnson, and D. Buhl
reported on the
Radio Detection of Interstellar Sulfur Dioxide
Astrophys. J. 198, L81–L84 (1975).
The NRAO 11 m dish was used to detect three transition in the Orion Molecular Cloud-1: 8_1,7 – 8_0,8 (83688.093 MHz); 8_3,5 – 9_2,8 (86639.088 MHz); and 7_3,5 – 8_2,6 (97702.334 MHz).

F. P. Schloerb, P. Friberg, Å. Hjalmarson, B. Höglund, and W. M. Irvine
reported on
Observations of Sulfur Dioxide in the Kleinmann-Low Nebula
Astrophys. J. 284, 161 – 171 (1983).
The OSO 20 m dish was used to detect several transitions of SO₂ along with three of ³⁴SO₂.

W. M. Irvine, J. C. Good, and F. P. Schloerb
reported on
Observations of SO₂ and HCS⁺ in Cold Molecular Clouds
Astron. Astrophys. 127, L10 – L13 (1983).
The FCRAO 14 m dish was used to detect the SO₂ 3_1,3 – 2_0,2 transition near 104029.42 MHz toward the L183 dark cloud.

Contributor(s): H. S. P. Müller; 07, 2017