Abstract
In the weak-field limit of general relativity, gravitational waves obey linear equations and propagate at the speed of light. These properties of general relativity are supported by the observation of ultrahigh-energy cosmic rays as well as by LIGO’s recent detection of gravitation waves. We argue that two existing relativistic generalizations of modified Newtonian dynamics, namely, the generalized Einstein-aether theory and bimetric modified Newtonian dynamics, display fatal inconsistencies with these observations.
- Received 24 April 2017
DOI:https://doi.org/10.1103/PhysRevLett.119.031102
© 2017 American Physical Society
Physics Subject Headings (PhySH)
Gravitation, Cosmology & Astrophysics