‘Supernova sweeping’ cleans up a galaxy’s gas
After black holes quiet star formation, massive explosions put an end to it
SPRING CLEANING Jets erupting from a supermassive black hole, such as the one in Centaurus A (shown in this color composite image), might clear the way for supernovas to sweep out gas and stop star formation.
WFI/ESO (optical); A. Weiss et al/APEX/MPIfR and ESO (submillimeter); R. Kraft et al/CXC/CfA and NASA (x-ray)