Mapping the “invisible” circumgalactic medium around a z ∼ 4.5 radio galaxy with MUSEWuji Wang, Dominika Wylezalek, Carlos De Breuck, Joël Vernet, Andrew Humphrey, Montserrat Villar Martín, Matthew D. Lehnert and Sthabile KolwaA&A, 654 (2021) A88DOI: https://doi.org/10.1051/0004-6361/202141558