Evidence suggests that active supermassive black holes may drive quenching.
The strong jets of some active supermassive black holes may heat up cold gas, thus suppressing star formation.
This rapid star formation can lead to high rates of events like supernovae, which disrupt cold gas.
This process is thought to have quenched some smaller dwarf galaxies with small cold gas reservoirs.
[2][3] Schawinski, Kevin; Urry, C. Megan; Simmons, Brooke D.; Fortson, Lucy; Kaviraj, Sugata; Keel, William C.; Lintott, Chris J.; Masters, Karen L.; Nichol, Robert C.; Sarzi, Marc; Skibba, Ramin (2014-05-01).