Low-resolution moment maps of ¹³CO 2−1. Left panel: integrated intensity with contour levels 1.1  ×  (1, 3, 5, 7, 9, 11) Jy beam^-1 km   s^-1 and grayscale ranging from 1 to 10 Jy beam^-1 km   s^-1. Right panel: velocity field with contour levels starting at 1717 km   s^-1 and then increasing by steps of 8.6 km   s^-1. The grayscale ranges from 1713 to 1764 km   s^-1. (In the online version of this figure the grayscale is replaced with a rainbow color scale ranging from dark blue to red.)