Moment 0 and 1 maps of H¹³CN J = 4–3, CS J = 7–6, HCN J = 4–3, and HCO⁺ J = 4–3. Moment 0 maps are shown in green contours, overlaid on the moment 1 maps. The moment 0 map contours are spaced logarithmically between 5 and 100% of the peak emission, in 10 steps. The peak emissions are 0.94, 1.2, 1.2, and 0.69 Jy Beam⁻¹ km s⁻¹ for H¹³ CN J = 4–3, CS J = 7–6, HCN J = 4–3, and HCO⁺ J = 4–3, respectively. The mean rms is 0.22 Jy Beam⁻¹ km s⁻¹. All the datashown in this figure are from the combined dataset.