Penrose Diagram for a Transient Black Hole

Abstract

A Penrose diagram is constructed for a spatially coherent black hole that smoothly begins an accretion, then excretes symmetrically as measured by a distant observer, with the initial and final states described by a metric of Minkowski form. Coordinate curves on the diagram are computationally derived. Causal relationships between space-time regions are briefly discussed. The life cycle of the black hole demonstrably leaves asymptotic observers in an unaltered Minkowski space-time of uniform conformal scale.

14 pages, 9 figures, spelling corrections

References in corpus (5)

• Properties of Black Hole Radiation From Tunnelling
• Construction of a Penrose Diagram for a Spatially Coherent Evaporating Black Hole
• Coordinates with Non-Singular Curvature for a Time Dependent Black Hole Horizon
• Construction of a Penrose Diagram for an Accreting Black Hole
• An Exploration of the Physics of Spherically Symmetric Dynamic Horizons

Cited by in corpus (8)

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• Hawking-like radiation from evolving black holes and compact horizonless objects
• Searching for dynamical black holes in various theories of gravity
• Unruh--DeWitt detectors in spherically symmetric dynamical space-times
• Astrophysical black holes may radiate, but they do not evaporate
• Global Causal Structure of a Transient Black Object
• Black Hole - Never Forms, or Never Evaporates