Ho\v{r}ava Gravity after GW170817
A. Emir Gumrukcuoglu, Mehdi Saravani, Thomas P. Sotiriou
TL;DR
This paper examines how the GW170817 gravitational wave event constrains Horava gravity, a modified theory of gravity, by analyzing the implications of the observed near-light speed of gravitational waves.
Contribution
It provides an analysis of the constraints imposed by GW170817 on the parameter space of Horava gravity models.
Findings
Gravitational wave speed in Horava gravity must be very close to the speed of light.
GW170817 significantly restricts the viable parameter space of Horava gravity.
The results impact the theoretical viability of certain Horava gravity models.
Abstract
The recent detection of gravitational wave GW170817 has placed a severe bound on the deviation of the speed of gravitational waves from the speed of light. We explore the consequences of this detection for Horava gravity.
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Taxonomy
TopicsPulsars and Gravitational Waves Research · Cosmology and Gravitation Theories · Relativity and Gravitational Theory