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Observations of Diffuse and Translucent Clouds
1992
Symposium - International astronomical union
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Observations of interstellar CN, CH, and CH+ in diffuse and translucent clouds obtained with a spectral resolution of more the 500,000 are reported. First results from a survey of CH and CH+ are discussed. The CH+ isotopic ratio has been determined to be 68±5 toward ζ Oph and a component of 12CH+ has been found with a velocity width of 15 km s−1. A review of the rotational excitation temperature of interstellar CN and its implications is given.
doi:10.1017/s007418090008983x
fatcat:eiyrfpfd6nbkxc4isdehdt23de