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Science 14 August 1970:
Vol. 169. no. 3946, pp. 680 - 681
DOI: 10.1126/science.169.3946.680
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Articles

A Search for the 110 larr 111 Transition of Interstellar Thioformaldehyde

N. J. Evans II 1, C. H. Townes 1, H. F. Weaver 1, and D. R. W. Williams 1

1 Radio Astronomy Laboratory, University of California, Berkeley 94720

A search has been made for the 110 larr 111 transition of thioformaldehyde in interstellar clouds where formaldehyde is known to exist. Failure to detect this transition indicates that the ratio of thioformaldehyde abundance to that of formaldehyde is probably less than the abundance ratio of sulfur to oxygen.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)