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(Space.com) Winds from Black Holes Pack Surprisingly Strong Punch
(…) The amount of radiation flowing out from a black hole cannot exceed a certain level known as the Eddington limit or this radiation will blow gas flowing inward away. This limit is based on the black hole’s mass.
However, whether the amount of kinetic energy from a black hole, in the form of jets and winds, was constrained by the same limit was unclear. Insights on these jets and winds is crucial for understanding the critical role black holes can play in their host galaxies — for instance, they could blow on gas hard enough to keep stars from forming.