Multi-wavelengths observations of HD 34700A. (a) SPHERE/IRDIS IR scattered light observations and (b) ZIMPOL Hα observations presented in Columba et al. (2024), with the gray circles representing the coronograph (r = 92.5 mas ≈ 32 au). (c) ALMA 225.3 GHz continuum observations. (d), (e), and (f) show the moment 0 maps for the ¹²CO, ¹³CO, and C¹⁸O fiducial cubes, while (g), (h), and (i) show the peak intensity maps for the same cubes, respectively. The brightness temperature was computed using the Rayleigh-Jeans approximation. The white contour in the peak intensity maps encloses 5σ of the root-mean-square (RMS) noise of each line. The location of the spectroscopic binary is highlighted with the star. The beam size is shown in the lower left corner for the ALMA observations.