Modified gravity (MOG), the speed of gravitational radiation and the event GW170817/GRB170817A
M.A. GreenPerimeter Institute for Theoretical Physics, Waterloo, Ontario N2L 2Y5, CanadaJ. W. MoffatDep't of Physics and Astronomy, U. of Waterloo, Waterloo, Ontario N2L 3G1, CanadaViktor T. TothPerimeter Institute for Theoretical Physics, Waterloo, Ontario N2L 2Y5, Canada
2018en
ABI
Abstract
Modified gravity (MOG) is a covariant, relativistic, alternative gravitational theory whose field equations are derived from an action that supplements the spacetime metric tensor with vector and scalar fields. Both gravitational (spin 2) and electromagnetic waves travel on null geodesics of the theory's one metric. MOG satisfies the weak equivalence principle and is consistent with observations of the neutron star merger and gamma ray burster event GW170817/GRB170817A.
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