In situ versus ex situ drivers of galaxy quenching: critical black hole mass and main sequence universality in the FLAMINGO simulation

Acknowledgements: We thank the referee for constructive comments that improved the paper. SL (Seunghwan Lim) and RM (Roberto Maiolino) acknowledge support by the Science and Technology Facilities Council (STFC) and by the UKRI (UK Research and Innovation) Frontier Research grant RISEandFALL. RM also acknowledges funding from a research professorship from the Royal Society. This work used the DiRAC(Distributed Research using Advanced Computing)@Durham facility managed by the Institute for Computational Cosmology on behalf of the STFC (Science and Technology Facilities Council) DiRAC HPC (High Performance Computing) Facility (www.dirac.ac.uk). The equipment was funded by BEIS (Business, Energy and Industrial Strategy) capital funding via STFC capital grants ST/K00042X/1, ST/P002293/1, ST/R002371/1 and ST/S002502/1, Durham University and STFC operations grant ST/R000832/1. DiRAC is part of the National e-Infrastructure. This work is partly funded by research programme Athena 184.034.002 from the Dutch Research Council (NWO).