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Quasars signpost massive galaxies

The neighbourhoods of extremely bright astronomical objects called quasars in the early Universe have been incompletely probed. Observations suggest that these regions harbour some of the most massive known galaxies. See Letter p.457

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Figure 1: A distant quasar and its companion galaxy.


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Correspondence to Rychard Bouwens.

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Bouwens, R. Quasars signpost massive galaxies. Nature 545, 418–419 (2017).

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