Fig. 6.
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Rotation diagrams of CCS. The parameters Nu, gu, and Eu are the column density, degeneracy and level energy (with respect to the ground state level) of the upper level, respectively. The error bars on ln(Nu/gu) include the 15% calibration error. The blue line represent the best fits and the dashed grey lines are the extrapolations of the fit for the full range of Eu.
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