High-sensitivity millimeter emission images of CS Cha. Upper panel: dust continuum image generated with a robust parameter of 1.0. The color scale is linear and has been saturated to show the emission between 0 and 5σ_cont, with σ_cont = 11.8 μJy beam⁻¹ being the rms of this image. A box of 0.2″ per side is centered at the expected location of CS ChaB. The beam size is 105 × 75 mas, and is shown in the lower left corner of the figure. The scale bar at the top right represents 20 au. Lower panel: ¹²CO emission image generated with a robust parameter of 1.2, after stacking all the channel maps between −24 and 24 kms⁻¹ around the rest frame. The beam size is 148 × 97 mas, and is shown in the lower left corner of the figure. The color scale is linear and has been saturated to show the emission between 0 and 5σ_12CO, with σ_12CO = 1.4 mJy beam⁻¹ being the rms of this image.