New Relativistic Theory for Modified Newtonian Dynamics
Constantinos Skordis, Tom Złośnik
Abstract
We propose a relativistic gravitational theory leading to modified Newtonian dynamics, a paradigm that explains the observed universal galactic acceleration scale and related phenomenology. We discuss phenomenological requirements leading to its construction and demonstrate its agreement with the observed cosmic microwave background and matter power spectra on linear cosmological scales. We show that its action expanded to second order is free of ghost instabilities and discuss its possible embedding in a more fundamental theory.
Topics & Concepts
PhysicsCosmic microwave backgroundPhenomenology (philosophy)Newtonian dynamicsRelativistic dynamicsGravitationNewtonian fluidTheoretical physicsGravitational waveDynamics (music)Classical mechanicsAstrophysicsQuantum mechanicsEpistemologyPhilosophyAcousticsAnisotropyCosmology and Gravitation TheoriesRelativity and Gravitational TheoryBlack Holes and Theoretical Physics