Black hole winds are no longer what they used to be

In the early times of the universe, black holes in the centers of active galaxies grew much faster than today. Only in this way it can be explained that 500 to thousand million years after the big bang there were already such huge black holes. Today, however, things look different – the black holes at the centers are evolving in parallel with their host galaxies. When and why did this change occur?

That’s what a study led by three researchers from Italy’s National Institute of Astrophysics (INAF...