Understanding Black Hole Radiation: The Mystery of Light Escaping Explained

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Light cannot escape from within a black hole's event horizon, which is a widely accepted principle in astrophysics. Radiation detected from black holes, such as gamma and radio waves, originates from outside the event horizon, particularly from the hot, ionized matter in the accretion disk. This matter emits radiation as it spirals toward the black hole but does not cross the event horizon. Hawking Radiation is often misunderstood; it involves negative energy entering the black hole while positive energy escapes, but it does not come from within the event horizon. Understanding these mechanisms clarifies the nature of radiation associated with black holes.
Petyab
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Why is it generally acccepted that light can't escape from a black hole when gamma and radio wave radiation has been shown to be coming from them? A way I can think around this is that the expulsion happens before the event horizon and is some sort of rejection phenomenon that fuels a chain reaction. Sorry if that's crossing more into theory. Anybody got answers?
 
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Yes, you are correct that the expulsion happens OUTSIDE the EH. NOTHING escapes from inside the EH.

Even Hawking Radiation, which is sometimes misunderstood as being something that radiates from inside the EH, does NOT involve anything coming OUT of the EH, but rather a negative energy dropping into the EH while an equivalent positive energy moves further away from the EH.
 
What Phinds said, plus you have to remember that accretion disks get very very hot, ionized, and emit lots of radiation when the matter is in the process of falling into the BH, but before it passes the event horizon.
 

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