Negative Komar Masses in Regular Stationary Spacetimes
General Relativity and Quantum Cosmology
2016-11-15 v1
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.
Cite
@article{arxiv.0708.3899,
title = {Negative Komar Masses in Regular Stationary Spacetimes},
author = {Marcus Ansorg and David Petroff},
journal= {arXiv preprint arXiv:0708.3899},
year = {2016}
}
Comments
3 pages, submitted to the Proceedings of the MGXI Meeting