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Dynamical Behavior of Black-hole Spacetimes by Destounis, Kyriakos is a scholarly article available to read on EtoBox.

What is Dynamical Behavior of Black-hole Spacetimes about?

The theory of General Relativity predicts that black holes are a natural constituent of our Universe. Before a black hole binary relaxes to a final state, it undergoes damped oscillations which completely characterize the final object. These oscillations are described by quasinormal modes which are present in many dissipative systems. Quasinormal modes are linked to the way a black hole spacetime responds to small fluctuations. Although the field equations admit a well defined future evolution of spacetime, some black holes, like the ones formed after a binary merger, possess a boundary, beyond which the field equations lose their predictive power. This boundary is called a Cauchy horizon and designates the region beyond which the spacetime can potentially be described in a highly non-unique manner. Strong cosmic censorship states that, generically, suitable initial data should be future inextendible beyond the Cauchy horizon, as a solution to the field equations. Recent studies indicate that the fate of Cauchy horizons, such as those found inside charged and rotating cosmological black holes, is intrinsically connected to the decay of perturbations exterior to the event horizon. A

Author

Destounis, Kyriakos

Published

2019

Language

EN