Square Peg in a Circular Hole: Choosing the Right Ansatz for Isolated Black Holes in Generic Gravitational Theories

Yiqi Xie, Jun Zhang, Hector O. Silva, Claudia De Rham, Helvi Witek, Nicolás Yunes

Research output: Contribution to journalArticlepeer-review

Abstract

The metric of a spacetime can be greatly simplified if the spacetime is circular. We prove that in generic effective theories of gravity, the spacetime of a stationary, axisymmetric, and asymptotically flat solution must be circular if the solution can be obtained perturbatively from a solution in the general relativity limit. This result applies to a broad class of gravitational theories that include arbitrary scalars and vectors in their light sector, so long as their nonstandard kinetic terms and nonmininal couplings to gravity are treated perturbatively.

Original languageEnglish (US)
Article number241104
JournalPhysical review letters
Volume126
Issue number24
DOIs
StatePublished - Jun 18 2021

ASJC Scopus subject areas

  • General Physics and Astronomy

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