Answers are grounded in this paper and cite their sources.
Context. Until now, there have only been seven quasars at z > 4.5 whose the high-resolution radio structure had been studied in detail with Very Long Baseline Interferometry (VLBI) imaging.
No takes yet. Share an insight, caveat, or question.
A 2010 study studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: