Solar System tests of Ho\v{r}ava-Lifshitz black holes

TL;DR

This paper investigates whether classical Solar System tests of gravity can be used to observationally constrain Hořava-Lifshitz gravity, focusing on the Kehagias-Sfetsos black hole solution and finding strong parameter constraints.

Contribution

It demonstrates that classical tests of general relativity can effectively test and limit parameters in Hořava-Lifshitz gravity using Solar System observations.

Findings

Classical tests align with Hořava-Lifshitz predictions within certain parameter ranges.

Solar System observations impose severe constraints on the free parameters of the Kehagias-Sfetsos solution.

Hořava-Lifshitz gravity can be tested and constrained through well-known Solar System experiments.

Abstract

In the present paper we consider the possibility of observationally testing Horava gravity at the scale of the Solar System, by considering the classical tests of general relativity (perihelion precession of the planet Mercury, deflection of light by the Sun and the radar echo delay) for the Kehagias-Sfetsos asymptotically flat black hole solution of Horava-Lifshitz gravity. All these gravitational effects can be fully explained in the framework of the vacuum solution of Horava gravity, and it is shown that the analysis of the classical general relativistic tests severely constrain the free parameter of the solution.