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(a) shows the values of the UV field following the Hocuk et al. (2017) parameterization for TMC 1-C (blue) and TMC 1-CP (red) cuts (dashed lines). We also show the best fit (solid line) for the whole TMC 1 region, with χUV(TMC1) = 5. Similarly, in (b), the parameterization yields a Draine field of χUV(B1b) ∼ 24 for Barnard 1b. It is worth noticing the raise of dust temperature in the Av > 30 mag region, probably due to the FHSC heating of dust or the presence of a thick ice covering.
