Gravitational footprints of black holes and their microstate geometries

@article{Bah2021GravitationalFO,
  title={Gravitational footprints of black holes and their microstate geometries},
  author={Ibrahima Bah and Iosif Bena and Pierre Heidmann and Yixuan Li and Daniel R. Mayerson},
  journal={Journal of High Energy Physics},
  year={2021},
  volume={2021}
}
We construct a family of non-supersymmetric extremal black holes and their horizonless microstate geometries in four dimensions. The black holes can have finite angular momentum and an arbitrary charge-to-mass ratio, unlike their supersymmetric cousins. These features make them and their microstate geometries astrophysically relevant. Thus, they provide interesting prototypes to study deviations from Kerr solutions caused by new horizon-scale physics. In this paper, we compute the gravitational… 

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