Rest-frame 88 μm continuum emission of the z = 6.08 quasar J2100–Q (Western source) and its companion J2100–SB (Eastern source). Logarithmically spaced contours are shown at ±2, 4, 8, ... σ, with σ = 54 μJy beam−1. The beam size of 0.″73 × 0.″57 (position angle: 87.°3) is shown in the bottom-left corner. Two pointings were needed to cover both sources in ALMA band 8.