Galaxies stop making stars earlier if they host supermassive black holes

The researchers measured the different wavelengths of light coming from nearby massive galaxies with data from the Hobby-Eberly Telescope Massive Galaxy Survey. This allowed the team, led by Ignacio Martín-Navarro, to create a historical snapshot of the gas cooling rate of the early Universe. Comparing galaxies and their rate of new star formation, the team …

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