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arXiv · 2011.08851

Topological Stars and Black Holes

Ibrahima Bah·Pierre Heidmann
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Abstract

We study smooth bubble spacetimes in five-dimensional Einstein-Maxwell theory that resemble four-dimensional magnetic black holes upon Kaluza-Klein reduction. We denote them as Topological Stars since they have topological cycles supported by magnetic flux. They can be macroscopically large compared to the size of the Kaluza-Klein circle and could describe qualitative properties of microstate geometries for astrophysical black holes. We also describe five-dimensional black strings without curvature singularity, the interior caps as a two-dimensional Milne space with a bubble.

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Ibrahima Bah, Pierre Heidmann. 2021-07-22. Topological Stars and Black Holes. https://doi.org/10.1103/physrevlett.126.151101

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