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"If either the direct-collapse or super-Eddington scenario is correct, there is no need to tinker with the ACDM cosmological model. And Hennawi points out that it's not necessarily an either/or proposition. Both direct collapse and super-Eddington accretion could have been operating in the early universe, he say, Natarajan agrees."
Astronomy Magazine March 2021 "How to Grow a Giant Black Hole" pp. 16-23
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