Could the Light Crowd in Orbiting Black Holes Over Billions of Years?

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Discussion Overview

The discussion revolves around the concept of light orbiting black holes and whether it could become "crowded" over billions of years. Participants explore the implications of light's behavior in the vicinity of black holes, touching on theoretical and conceptual aspects.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant questions if light could become crowded around a black hole over time due to its continuous influx from all directions.
  • Another participant argues that orbits of light around black holes are not stable, as even minor gravitational disturbances cause light to fall into the black hole, preventing any accumulation.
  • A different viewpoint suggests that only photons created or reflected at the orbital radius could maintain a stable orbit, aligning with the previous claim about instability.
  • One participant asserts that the crowding of light leads to the formation of quasars.
  • Another participant claims that the photonsphere of a black hole is an illusion and lacks physical reality, comparing it to a rainbow.

Areas of Agreement / Disagreement

The discussion features multiple competing views regarding the behavior of light around black holes, with no consensus reached on the implications of crowding or the nature of the photonsphere.

Contextual Notes

Participants express varying assumptions about the stability of light orbits and the physicality of the photonsphere, which remain unresolved.

zuz
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light orbiting black holes
If light can orbit a black hole, and it is continuously coming in from every direction, wouldn't it get "crowded" in there over billions of years?
 
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Those orbits are not stable and the light will fall into the black hole as a result of even the tiniest gravitational disturbance. Since objects in the universe are always moving around, these disturbances happen constantly, so it never has a chance to build up.
 
Light that is "coming into the black hole" will always spiral in. The only photons that could have a stable orbit are created (or reflected) at the orbital radius. Then what Drakkith said applies to that too.
 
Yes it gets crowded and the result of that is a quasar
 
The photonsphere of a black hole is merely an illusion. It has no physicality and is no more real than a rainbow.
 

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