Fig. 4.
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ALMA continuum emission maps at rest-frame 1900 GHz (Band 7) and 690 GHz (Band 3). The black solid and dashed grey contours indicate the ±2, 4, 8..σ levels. We show the synthesized beam in white in the left bottom of each panel. The rest-frame UV/optical position of the quasar is reported with a black cross. The continuum emission is not detected in J2228+0110 nor in J2053+0047.
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