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Conference Paper

Negative Komar Masses in Regular Stationary Spacetimes

MPS-Authors

Ansorg,  Marcus
Geometric Analysis and Gravitation, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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0708.3899v1.pdf
(Preprint), 70KB

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Citation

Ansorg, M., & Petroff, D. (2008). Negative Komar Masses in Regular Stationary Spacetimes. In Proceedings of the Eleventh Marcel Grossmann General Relativity (pp. 1600-1602). New Jersey u.a.: World Scientific.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-471A-0
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.