Figure 7.

Same as Figure 6 but the CO 2-1 line (in contours). The CO 2-1 contours go from 1.5 to 160 K km s⁻¹ in steps of 30 K km s⁻¹. The high velocity CO 2-1 emission (v_LSR<0 s⁻¹ and v_LSR>15 s⁻¹) mostly arises from molecular outflows around Orion BN/KL and Orion S protostellar sources. At other positions, the observed [C ii] emission in these velocity ranges does not have CO emission counterpart (e.g., the blue-shifted [C ii] streamer at v_LSR=−2 to +5 km ⁻¹, or the [C ii] emission in the southwest at v_LSR ≳ 12 km s⁻¹ beyond the Orion Bar). The first two upper-left panels show total integrated line intensity maps of CO 2-1 (from 0 to 600 K km s⁻¹) and [C ii] 158 μm (from 0 to 1300 K km s⁻¹). In the [C ii] total intensity map, CO 2-1 integrated line intensities are shown as white contours, from 200 to 500 K km s⁻¹ in steps of 100 K km s⁻¹ (extended emission) and from 800 to 1400 K km s⁻¹ in steps of 200 K km s⁻¹ (Orion BN/KL outflows).