Left: maps of the ¹³CO J = 3–2 integrated emission between 270–290 km s⁻¹. The contour levels are 1, 2, 3, and 4 K km s⁻¹ for N11B (upperpanel), 1, 1.5, and 2 K km s⁻¹ for N11D (middle panel), and 0.6, 1, and 1.5 K km s⁻¹ for N11I (bottom panel). The rms noise levels is about 0.2 K km s⁻¹. Right: maps of the ¹²CO J = 3–2 integrated emission between 270 and 290 km s⁻¹. The contour levels are 7, 10, 17, and 25 K km s⁻¹ for N11B (upperpanel), 5, 8, 11, and 15 K km s⁻¹ for N11D (middle panel), and 5, 7, and 11 K km s⁻¹ for N11I (bottom panel). The rms noise level is between 1 and 1.5 K km s⁻¹. The beam isincluded in each panel.