Same as Fig. 1 but for ${\text{H}}_2^{\text{34}}\text{S}$ and ³⁴SO. Top: Velocity-integrated maps of ³⁴SO (2₃-1₂). Levels start at 3σ (1σ = 50, 28 and 10.4 mJy.beam⁻¹, respectively; white contours) with steps of 7, 3, and 5σ (black contours), respectively. Bottom: Velocity-integrated maps of ${\text{H}}_2^{\text{34}}\text{S}$ (1_1, 0-1_0, 1). Level starts at 3 σ (1σ = 56 mJy.beam⁻¹; white contours) with steps of 7σ (black contours).