Rotating black hole interiors take 2

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SUMMARY

The discussion centers on the interior models of rotating black holes as proposed by Poisson and Israel, particularly focusing on the interior metric and the phenomenon of mass inflation. The Schwarzschild coordinates are referenced, specifically g^00 = 1 - 2m(r)/r, where m(r) approaches infinity near the Cauchy horizon, indicating mass inflation. Participants debate the fate of objects falling into such black holes, questioning whether they experience spaghettification or are subjected to infinite radiation at the inner horizon, with a consensus leaning towards the latter.

PREREQUISITES
  • Understanding of general relativity principles
  • Familiarity with black hole physics, particularly rotating black holes
  • Knowledge of Schwarzschild coordinates and metrics
  • Concept of mass inflation in black hole interiors
NEXT STEPS
  • Research the Poisson-Israel model of black holes in detail
  • Study the implications of mass inflation on black hole interiors
  • Examine the effects of the Cauchy horizon on falling objects
  • Learn about the radiation effects near black hole inner horizons
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The discussion is beneficial for physicists, astrophysicists, and students studying black hole dynamics, particularly those interested in the theoretical aspects of black hole interiors and their implications for objects entering these extreme environments.

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I have a couple of questons about the black hole interior models of Poisson and Israel http://prola.aps.org/abstract/PRD/v41/i6/p1796_1. While formulated in terms of charged black holes, similar models are expected to apply to rotating black holes.

1) What is the interior metric? Am I correct or even close in thinking that using Schwarzschild coordinates, g^00 = 1-2m(r)/r, where m(r) goes to infinity as one approaches the inner horizon (the Cauchy horizon) and that this increase in m(r) is what the authors mean by "mass inflation"? I'm finding the paper a bit hard to follow.

2) What is the fate of someone falling into such a Poisson-Israel black hole. Do they get spaghettified as per http://en.wikipedia.org/wiki/Spaghettification (My guess is no). Do they get fried by infinite radiation at the inner horizon? (My guess is yes). But I'd really rather not have to guess.
 
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