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Polish Doughnuts around Scalarized Kerr Black Holes

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arxiv 2108.08640 v1 pith:5ZE5F2LR submitted 2021-08-19 gr-qc

Matheus C. Teodoro , Lucas G. Collodel , Daniela Doneva , Jutta Kunz , Petya Nedkova , Stoytcho Yazadjiev This is my paper · ORCID
classification gr-qc
keywords blackholeskbhsshkerrtoriaroundconfigurationsdoughnuts
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In this work we aim to investigate non-mainstream thick tori configurations around Kerr Black Holes with Scalar Hair (KBHsSH). For that goal, we provide a first approach using constant specific angular momentum non-self-gravitating Polish doughnuts. Through a series of examples, we show the feasibility of new topologies, such as double-centered tori with two cusps as well as similar structures as the ones found for rotating Boson Stars (BSs), namely tori endowed with two centers and a single cusp. These KBHsSH' solutions are also shown to possibly house static surfaces, associated to the static rings present in these spacetimes. Through this report we highlight the differences between these fluid configurations when housed by some KBHsSH examples, standard Kerr black holes and rotating BSs.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Static spheres in black hole spacetimes: pairing, energy conditions, and an upper bound on the innermost radius

    gr-qc 2026-07 conditional novelty 6.0 of 10

    Static spheres around black holes come in unstable/stable pairs, need negative radial pressure, and their innermost radius obeys a new upper bound tied to strong-energy-condition violation.

  2. Static stable timelike circular orbits and Aschenbach effect in horizonless solutions of Einsteinian cubic gravity

    gr-qc 2026-01 conditional novelty 6.0 of 10

    In Einsteinian cubic gravity, horizonless solutions possess static stable circular orbits at the ISCO, with a non-monotonic ZAMO velocity profile (Aschenbach effect).

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