The rich galactic environment of a H2-absorption-selected quasar - Lyα mapping down to the inner kiloparsecs via perfect natural coronagraphy and integral field spectroscopyF. Urbina, P. Noterdaeme, T. A. M. Berg, S. Balashev, S. López and F. BianA&A, 688 (2024) L25DOI: https://doi.org/10.1051/0004-6361/202451236