Fig. 5
RD as a function of the gas temperature Tkin for different values of ζ/nH: from 2 to 5 × 10-19 s-1, as marked. Note that for ζ/nH ≤ 2 × 10-19 cm3 s-1 (thick solid line), the cloud is always in the LIP, regardless of the temperature. For ζ/nH> 5 × 10-19 cm3 s-1 (thin dashed curve), the cloud is always in the HIP for temperatures ≤50 K. Hatched areas show observations of N5 and N6. We assume AV = 20 mag.
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