Fig. 4
Ratio of non-thermal components of N2D+(2–1), N2H+(1–0), DCO+(2–1), H13CO+(1–0), and C18O(1–0) to the thermal linewidth of a mean particle as a function of radius (distance from the N2H+(1–0) intensity peak) for all cores. The solid and dashed blue lines show the ratios equal to 1 and 0.5. The colour scale represents the density of the points.
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