Integrated intensity of (residual) emissions after subtracting the best ring+disk models. Left: ¹²CO(3–2). The restoring beam of 0.34″ × 0.28″, PA = −89° is indicated in the lower left corner. Middle: ¹³CO(3–2). The restoring beam is 0.22″ × 0.16″, PA = 16°. Right: C¹⁸O(3–2). The restoring beam is 0.19″ × 0.14″, PA = −167°. The contour level is 0.07 Jy beam⁻¹ km s⁻¹ (5σ) for ¹²CO (3–2) map and ~0.02 Jy beam⁻¹ km s⁻¹ (3σ) for ¹³CO (3–2) and C ¹⁸O(3–2) maps, the zero level is omitted. The ellipses show the inner and outer edges of the dust ring at 180 and 260 au.