Top panels: velocity-integrated intensities (contours) for the ¹²CO J = 2−1, ¹³CO J = 2−1, and C¹⁸O J = 2−1 line emission, overlaid on the continuum emission. For ¹²CO J = 2−1, the intensities are integrated over the velocity range between 6.5 and 20.8 km s^-1; the contours are drawn at 0.69 Jy beam^-1 km s^-1 (3σ) intervals, starting at 0.69 Jy beam^-1 km s^-1 (3σ). For ¹³CO J = 2−1, the intensities are integrated over the velocity range between 7 and 20 km s^-1; the contours start at 0.48 Jy beam^-1 km s^-1 (3σ) with an interval of 0.16 Jy beam^-1 km s^-1 (1σ). For C¹⁸O J = 2−1, the intensities are integrated over the velocity range between 7 and 20 km s^-1; the contours begin at 0.24 Jy beam^-1 km s^-1 (3σ) and increase in 0.08 Jy beam^-1 km s^-1 (1σ) increments. In each panel, the negative contours (dashed lines) are drawn at −1σ intervals, starting at −3σ. The synthesized beam for each line emission is shown in the lower left corner in each panel. Bottom panels: modeled velocity-integrated intensities (contours) for the ¹²CO J = 2−1, ¹³CO J = 2−1, and C¹⁸O J = 2−1 line emission, overlaid on the modeled continuum emission for the GW Ori disk system. The contour levels are the same as in the top panels at the corresponding molecular lines.