Vrtilek et al. 1985
Vrtilek, J.M., C.A. Gottlieb, W.D. Langer, P. Thaddeus, and R.W. Wilson, 1985: Laboratory and astronomical detection of the deuterated ethynyl radical CCD. Astrophys. J., 296, L35-L38, doi:10.1086/184544.
Two rotational transitions of CCD, N = 1-2 at 144 GHz and 2-3 at 216 GHz, were detected in a laboratory glow discharge through deuterated acetylene and helium, after which one, N = 2-1, was detected toward the rich molecular cloud behind the Orion Nebula. The 144 GHz transition is a well-resolved spin doublet split by 55 MHz, the components of which contain hyperfine structure of the order of 1 MHz, so far only partially resolved. From observations toward two positions in Orion, at and near the Kleinmann-Low nebula, the column density of CCD is determined to be 1.8×1013 cm-2 and the isotopic ratio CCD/CCH = 0.05. CCD was not detected at two positions in TMC-1.
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Vrtilek, J.M., Gottlieb, C.A., Langer, W.D., Thaddeus, P., and Wilson, R.W.: Laboratory and astronomical detection of the deuterated ethynyl radical CCD, Astrophys. J., 296, L35-L38, doi:10.1086/184544, 1985.
Vrtilek, J.M., C.A. Gottlieb, W.D. Langer, P. Thaddeus, and R.W. Wilson (1985), Laboratory and astronomical detection of the deuterated ethynyl radical CCD, Astrophys. J., 296, L35-L38, doi:10.1086/184544.
Vrtilek, J.M., C.A. Gottlieb, W.D. Langer, P. Thaddeus, and R.W. Wilson, 1985: Laboratory and astronomical detection of the deuterated ethynyl radical CCD. Astrophys. J., 296, L35-L38, doi:10.1086/184544.
Vrtilek, J.M., Gottlieb, C.A., Langer, W.D., Thaddeus, P., & Wilson, R.W. 1985, Astrophys. J., 296, L35, doi:10.1086/184544.
Vrtilek JM, Gottlieb CA, Langer WD, Thaddeus P, Wilson RW. Laboratory and astronomical detection of the deuterated ethynyl radical CCD, Astrophys J 1985;296:L35-L38. doi:10.1086/184544.
J.M. Vrtilek, C.A. Gottlieb, W.D. Langer, P. Thaddeus, R.W. Wilson, Astrophys. J. 296, L35-L38, doi:10.1086/184544 (1985).
