English

Stationary Einstein-vector-Gauss-Bonnet black holes

General Relativity and Quantum Cosmology 2026-04-07 v1

Abstract

We study spontaneously vectorized black holes in Einstein-vector-Gauss-Bonnet theory with a quadratic coupling function. Besides the static, spherically symmetric black holes carrying an electric charge, there are uncharged static, axially symmetric black holes that possess a magnetic dipole moment. Both types possess radial excitations. The magnetic black holes are prolate. They are hotter than the Schwarzschild black holes and possess lower free energy. The domain of existence of the rotating vectorized black holes is bounded by the Kerr black holes, the spherically and axially symmetric static black holes, and the critical solutions.

Keywords

Cite

@article{arxiv.2604.04568,
  title  = {Stationary Einstein-vector-Gauss-Bonnet black holes},
  author = {Burkhard Kleihaus and Jutta Kunz},
  journal= {arXiv preprint arXiv:2604.04568},
  year   = {2026}
}

Comments

18 pages, 10 figures

R2 v1 2026-07-01T11:55:09.748Z