Understanding Black Hole Gravity: Mechanisms and Mysteries

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SUMMARY

The discussion centers on the mechanisms behind black hole gravity, specifically how gravitational effects persist outside the event horizon after a stellar object collapses. Participants agree that gravity is a manifestation of the curvature of space-time, which remains detectable even when other properties of the black hole, such as mass and charge, are not observable beyond the event horizon. The conversation highlights that gravity is not an external force but rather an intrinsic property of the black hole's structure, akin to the gravitational effects experienced by Earth orbiting the sun.

PREREQUISITES
  • Understanding of general relativity and space-time curvature
  • Familiarity with black hole physics and event horizons
  • Knowledge of gravitational effects and their measurement
  • Basic concepts of stellar collapse and its implications
NEXT STEPS
  • Research the principles of general relativity and its implications for gravity
  • Study the characteristics and properties of black holes, including event horizons
  • Explore the methods used to detect gravitational effects from black holes
  • Investigate the relationship between mass, charge, and spin in black holes
USEFUL FOR

Astronomers, physicists, and students of astrophysics interested in the fundamental properties of black holes and the nature of gravity in extreme environments.

Naty1
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How does black hole gravity remain?

I think I read that when a stellar object collapses the gravity remains...that is, the gravity is not hypothesized to emerge from beyond the event horizon after the collapse of matter...almost everything else about the object "disappears" beyond the event horizon...so what's the mechanism that makes gravity remain outside the event horizon? Why does it remain but apparently nothing else?? (I think we also can detect spin and charge...so maybe my question applies to them as well...)
 
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The mechanism that "makes gravity remain outside the event horizon" is the same one that makes the Earth orbiting around the sun - the curvature of space-time...
 
Yes, gravity is the effect of the curvature of space-time. It is not susceptible to the black hole's pull, it is the black hole's pull.
 

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