Closest Safe Approach to an Accreting Black Hole

  title={Closest Safe Approach to an Accreting Black Hole},
  author={Benjamin K. Tippett and I. Booth},
  journal={Physical Review D},
  • Benjamin K. Tippett, I. Booth
  • Published 2014
  • Physics
  • Physical Review D
  • We examine the causal and geometric horizons of dynamical black holes in Lemaitre-Tolman-Bondi collapsing dust spacetimes. Marginally trapped tubes in these spacetimes may be spacelike, timelike or null and may also be sourced from or disappear into shell-crossing singularities which we resolve with (timelike) shockwaves. The event horizon kinks when it intersects a shockwave. We calculate the timelike separation between the crossable boundary (marginally trapped tubes plus connecting… CONTINUE READING
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