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Fig. A.4
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Column density ratio error maps. The solid white contours are the 30%, 60%, and 90% of the peak intensity of the N(H2) map of L1544 computed from Herschel/SPIRE data (Spezzano et al. 2016). The dashed white contours indicate the 3σ integrated emission with steps of 3σ (
, rmsHDCS = 12 mK km s−1, 
).
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