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Astronomy

Feeding the first quasars

Quasars, the oldest known objects in the Universe, are powered by gas falling into black holes at their centres. How black holes formed so early in time has been hard to explain, but a new model might have the answer.

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Figure 1: Quasars, black holes and dark matter.

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Correspondence to Laura Ferrarese.

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Ferrarese, L. Feeding the first quasars. Nature 421, 329–330 (2003). https://doi.org/10.1038/421329a

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