Overlay of position-velocity diagrams of the (J,K) = (9, 9), (10, 10), (13, 13) lines observed with the JVLA B-array toward W51e2-W. The cut is taken at the peak of the NH₃ core with a PA = 90°. The image shows the pv diagram for the (9, 9) doublet. The contours are −0.005 Jy beam^-1 for the (9, 9) transition (in black), −0.005,−0.01,−0.02,−0.03,−0.04 Jy beam^-1 for the (10, 10) transition (in blue), −0.005 and −0.01 Jy beam^-1 for the (13, 13) transition (in magneta), respectively. The vertical dashed gray line indicates the velocity at 57.4 km s^-1. The PA is measured from north to east.