Comparison of the PdBI (black) and ALMA-SV (green) channel maps of the acetone 17_7,11 − 16_6,10 EE line (E_up/k = 110.7 K) at 223 775.3 MHz. Contours run from 0.6 to 8.1 K in steps of 0.9 K, and the dashed contours represent –0.6 K. The bottom-right panel shows the integrated intensity (from 5 to 11 km s^-1) in contours running from 15% to 95% in steps of 10% of their peak temperatures, and the dashed contours represent –10% of their peak temperatures. The primary beams of the ALMA-SV and PdBI data are indicated. The black square marks the center of explosion according to Zapata et al. (2009). The positions of source BN, HC, IRc6/7, and source I are marked as triangles. The positions of acetone emission peaks (Ace-1 to Ace-3) are marked as stars.