Black hole boundaries

@article{Booth2005BlackHB,
  title={Black hole boundaries},
  author={Ivan Booth},
  journal={Canadian Journal of Physics},
  year={2005},
  volume={83},
  pages={1073-1099}
}
  • I. Booth
  • Published 26 August 2005
  • Physics
  • Canadian Journal of Physics
Classical black holes and event horizons are highly nonlocal objects, defined in relation to the causal past of future null infinity. Alternative, quasilocal characterizations of black holes are often used in mathematical, quantum, and numerical relativity. These include apparent, Killing, trapping, isolated, dynamical, and slowly evolving horizons. All of these are closely associated with two-surfaces of zero outward null expansion. This paper reviews the traditional definition of black holes… 
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References

SHOWING 1-10 OF 43 REFERENCES
Horizon energy and angular momentum from a Hamiltonian perspective
Classical black holes and event horizons are highly non-local objects, defined in terms of the causal past of future null infinity. Alternative, (quasi)local definitions are often used in
LETTER TO THE EDITOR: Isolated horizons: a generalization of black hole mechanics
A set of boundary conditions defining a non-rotating isolated horizon are given in Einstein-Maxwell theory. A spacetime representing a black hole which itself is in equilibrium but whose exterior
Mechanics of rotating isolated horizons
Black hole mechanics was recently extended by replacing the more commonly used event horizons in stationary space-times with isolated horizons in more general space-times (which may admit radiation
Generic isolated horizons and their applications
TLDR
The framework provides new tools to extract physics from strong field geometry and leads to a generalization of the zeroth and first laws of black hole mechanics and sheds new light on the "origin of the first law".
DISTORTED BLACK HOLES WITH CHARGE
We present new solutions to the Einstein–Maxwell equations representing a class of charged distorted black holes. These solutions are static-axisymmetric and are generalizations of the distorted
Making anti-de Sitter black holes
It is known from the work of Banados et al that a spacetime with event horizons (much like the Schwarzschild black hole) can be obtained from (2 + 1)-dimensional anti-de Sitter space through a
Black hole evaporation: a paradigm
A paradigm describing black hole evaporation in non-perturbative quantum gravity is developed by combining two sets of detailed results: (i) resolution of the Schwarzschild singularity using quantum
Isolated horizons: Hamiltonian evolution and the first law
A framework was recently introduced to generalize black hole mechanics by replacing stationary event horizons with isolated horizons. That framework is significantly extended. The extension is
Distorted black holes.
All exact solutions of Einstein’s equation that represent static, axisymmetric black holes distorted by an external matter distribution are obtained. Their structure—local and global—is examined. The
Metric of a tidally distorted nonrotating black hole.
The metric of a tidally distorted, nonrotating black hole is presented in a light-cone coordinate system that penetrates the event horizon and possesses a clear geometrical meaning. The metric is
...
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