"Whizzing around the black hole at near-light-speed, the disk heats up and blast out torrents of radiation across many wavelengths. This intense radiation across many wavelengths. This intense radiation exerts pressure that literally pushes away nearby matter, limiting how fast black holes can add mass. An object's theoretical maximum accretion rate is known as the Eddington limit, after British astrophysicist Sir Arthur Eddington (1882-1944)."
Astronomy Magazine March 2021 "How to Grow a Giant Black Hole" p. 20
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