Abstract
We present observational line data for five Bok Globules. Observations were made in the J = 2 → 1 and J = 3 → 2 rotational transitions of CO, 13 CO and C 18 O at the Heinrich-Hertz-Telescope in Arizona. Using the stochastic radiative transfer model (SRTM) based on the generalized radiative transfer equation as described in the previous papers of this series, we were able to fit the observed CO lines for four of the five Bok globules. The derived parameters such as the hydrogen density, the cloud mass and temperature in part differ significantly from values obtained from a standard LVG analysis or a microlurbulent approach. The best fits are obtained for models characterized by a ratio of the mean free path of photons to the correlation length of the turbulent velocity field of the order of unity. This is what characterizes the mesolurhulent regime that cannot be dressed by standard evaluation methods like LVG or microturbulent approximations.
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