Channel maps of the ¹²CO J = 1−0 and J = 2−1 line emission toward V Cyg at the LSR velocities (units of km s^-1) specified in the top-left corner of each panel. No primary beam attenuation correction is applied. (Top) CO J = 1−0: contours are plotted at 5, 12, 24, and 42σ and from there with a spacing of 20σ, where σ =  7.8 mJy beam^-1. Equivalent negative contours are plotted in dashed lines. The last panel presents the continuum emission with a first contour and contour spacing of 3σ, where σ = 0.4 mJy beam^-1. The synthesized beam, plotted in the bottom-right corner of last panels, is in size, with PA = 63°. (Bottom) CO J = 2−1: contours are plotted at 8, 20 and 35σ and from there with a spacing of 25σ, where σ = 15 mJy beam^-1. Equivalent negative contours are plotted in dashed lines. The last panel presents the continuum emission with a first contour and contour spacing of 4 and 6σ, where σ = 0.8 mJy beam^-1. The synthesized beam, plotted in the bottom-right corner of last panels, is in size, with PA = 50°. The primary beams are plotted at half power in dotted lines in the last panels of the channel maps. The central coordinates are RA 20:41:18.270, Dec 48:08:28.80 (J2000).