Signatures of UV radiation in low-mass protostars - I. Origin of HCN and CN emission in the Serpens Main region

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Fig. 1

EMIR map of HCN 1–0 (contours) on top of the continuum emission at 250 μm from Herschel/SPIRE. The HCN contours start at 6 K km s⁻¹ (20 σ) and are drawn in steps of 3 K km s⁻¹ (10 σ). The protostellar properties are shown in Table 1.

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