Same as Fig. 1 but for OCS and H₂CS, which show their peak of emission towards each of the GMCs rather than the inner CMZ. Top: velocity-integrated maps of H₂CS (3_0, 3 − 2_0, 2), (7_1, 7 − 6_1, 6), and (11_1, 11 − 10_1, 10). Levels start at 3σ (1σ = 21, 50, and 27 mJy beam⁻¹, respectively; white contours) with steps of 4, 10, and 4σ (black contours), respectively. Bottom: velocity-integrated maps of OCS (8–7), (13–12) and (17–16). Levels start at 3σ (1σ = 14, 63.7 and 90 mJy beam⁻¹, respectively; white contours) with steps of 7, 4, and 7σ (black contours), respectively.