Left panel: average ¹²CO line emission T_mb−12 within the velocity interval from –27.1 to –19.9 km s^-1. Contours go from 14 to 24 K, in steps of 1 K. Middle panel: average image of the ¹³CO line emission showing T_mb−13 within the velocity interval from –27.1 to –20.8 km s^-1. Contours go from 3 to 10 K in steps of 0.5 K. Right panel: average image of the C¹⁸O line emission showing T_mb−18 within the velocity interval from –25.0 to –21.1 km s^-1. Contours are 0.51, 0.68, 0.85, 1.02, 1.19, 1.70, 2.04, and 2.38 K. The triangle indicates the position of IRAS 10361-5530. The different symbols mark the location of candidate YSOs identified by CNAV08 and Ohlendorf et al. (2013): MSX sources (circles) and WISE sources (plus signs). White contours in the left panel correspond to T_mb ≤ 17 K.