Multicomponent view of GM Aur. Top left: SPHERE image from this work obtained with an adaptive de-noising procedure based on the adaptive kernel smoothing technique and implemented in the SPLASH software (Price 2007). Top right: ALMA continuum image in Band 4 from Huang et al. (2020). Bottom left: ALMA ¹²CO 2–1 line moment-0 map from Huang et al. (2021). Bottom right: Combined view. The most obvious arms are highlighted in this panel. The common spatial scale is indicated to the bottom right.