Synthetic CO line emission (J 2-1) at t = 17.07 kyr for the cloudlet encounter simulation. The left panel shows the moment 1 map, with the gray dashed line showing the 600 mJy arcsec⁻² km s⁻¹ moment 0 contour. The right panel shows the peak brightness temperature on a square root scale. The gray and white arrows represent the initial orbital velocity of the cloudlet. The white dashed line in the right panel represents the T_b,peak = 20 K contour line.