Extended Data Fig. 1: Antenna response (primary beam) map of the mosaic ALMA observation.
From: Compact [C ii] emitters around a C iv absorption complex at redshift 5.7
The response is normalized to one at the field centre and the survey field is defined as the area of about 23″ in radius at which the relative response is above 20%. The primary beam size of the seven individual pointings (r = 15″) that compose the mosaic observation is shown by the dotted-line circles with pointing numbers from 1 to 7. The positions of the two [C ii] sources ([C ii]1030A and B) are marked by red stars.
