Integrated intensity maps of the 3_0,з–2_0,2 transitions of H₂CS, HDCS, and D₂CS towards the inner 2.5′ × 2.5′ of L1544. All maps have been smoothed to 30.5″, and the beam is shown at the bottom left of each map. 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 (, rms_HDCS = 12 mK kms⁻¹, ).