Smoothed binned signal-to-noise bispectra ℬ for the Planck 2018 cleaned sky maps. We show slices as a function of ℓ1 and ℓ2 for a fixed ℓ3-bin [518, 548]. From left to right results are shown for the four component-separation methods SMICA, SEVEM, NILC, and Commander. From top to bottom we show: TTT; TTT cleaned of clustered and unclustered point sources; T2E; TE2; and EEE. The colour range shows signal-to-noise from −4 to +4. The light grey regions are where the bispectrum is not defined, either because it lies outside the triangle inequality or because of the cut .
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