Quasars slowed star formation new research shows. It appears intense radiation and galaxy-scale winds emitted by the quasars – the most luminous objects in the universe – heats up clouds of dust and gas. The heat prevents that material from cooling and forming more dense clouds, and eventually stars.
They looked at information on 17,468 galaxies and found a tracer of energy called the Sunyaev-Zel’dovich Effect...
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