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arXiv · 0708.3899

Negative Komar Masses in Regular Stationary Spacetimes

Marcus Ansorg·David Petroff
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Abstract

A highly accurate multi-domain spectral method is used to study axially symmetric and stationary spacetimes containing a black hole or disc of dust surrounded by a ring of matter. It is shown that the matter ring can affect the properties of the central object drastically. In particular, by virtue of the ring's frame dragging, the so-called Komar mass of the black hole or disc can become negative. A continuous transition from such discs to such black holes can be found.

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Marcus Ansorg, David Petroff. 2007-08-29. Negative Komar Masses in Regular Stationary Spacetimes. https://doi.org/10.1142/9789812834300_0206

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