# Classification and asymptotic structure of black holes in bimetric theory

## TL;DR

This paper classifies static, spherically symmetric black holes in Hassan-Rosen bimetric theory and finds that only solutions matching GR black holes converge to familiar spacetimes at large distances.

## Contribution

It provides a new classification scheme for bidiagonal black holes and demonstrates the asymptotic behavior of solutions in bimetric theory.

## Key findings

- Classified black holes based on horizon behavior.
- Only GR-like solutions match standard spacetimes asymptotically.
- Identified unique solutions converging to Minkowski, AdS, and dS.

## Abstract

We study general properties of static and spherically symmetric bidiagonal black holes in Hassan-Rosen bimetric theory. In particular, we explore the behaviour of the black hole solutions both at the common Killing horizon and at the large radii. The former study leads to a new classification for black holes within the bidiagonal ansatz. The latter study shows that, among the great variety of the black hole solutions, the only solutions converging to Minkowski, Anti-de Sitter and de Sitter spacetimes at large radii are those of General Relativity, i.e., the Schwarzschild, Schwarzschild-Anti-de Sitter and Schwarzschild-de Sitter solutions.