Gravitational waveform and polarization from binary black hole inspiral in dynamical Chern-Simons gravity: from generation to propagation
We calculate the gravitational waveform radiated from spinning black holes (BHs) binary in
dynamical Chern-Simons (dCS) gravity. The equation of motion (EOM) of the spinning …
dynamical Chern-Simons (dCS) gravity. The equation of motion (EOM) of the spinning …
Barred spiral galaxies in modified gravity theories
When bars form within galaxy formation simulations in the standard cosmological context,
dynamical friction with dark matter (DM) causes them to rotate rather slowly. However …
dynamical friction with dark matter (DM) causes them to rotate rather slowly. However …
[HTML][HTML] Modified gravity (MOG), the speed of gravitational radiation and the event GW170817/GRB170817A
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 …
equations are derived from an action that supplements the spacetime metric tensor with …
Modified Gravity (MOG) fits to observed radial acceleration of SPARC galaxies
MA Green, JW Moffat - Physics of the Dark Universe, 2019 - Elsevier
The equation of motion in the generally covariant modified gravity (MOG) theory leads, for
weak gravitational fields and non-relativistic motion, to a modification of Newton's …
weak gravitational fields and non-relativistic motion, to a modification of Newton's …
Conservation laws in theories with universal gravity/matter coupling
O Minazzoli - Physical Review D—Particles, Fields, Gravitation, and …, 2013 - APS
In this paper, we investigate the conservation laws of different types of particles in theories
with a universal gravity/matter coupling. The result brings new insight about previous studies …
with a universal gravity/matter coupling. The result brings new insight about previous studies …
Propagation of electromagnetic waves in MOG: Gravitational lensing
S Rahvar, JW Moffat - Monthly Notices of the Royal Astronomical …, 2019 - academic.oup.com
We investigate the solution of Maxwell's equations in curved spacetime within the framework
of modified gravity (MOG). We show that besides the null-geodesic treatment of photons in …
of modified gravity (MOG). We show that besides the null-geodesic treatment of photons in …
Jeans analysis in modified gravity
MOdified Gravity (MOG) is a covariant modification of Einstein's general relativity. This theory
is one of the current alternatives to dark matter models. We describe the dynamics of …
is one of the current alternatives to dark matter models. We describe the dynamics of …
Modified gravity (MOG), cosmology and black holes
JW Moffat - Journal of Cosmology and Astroparticle Physics, 2021 - iopscience.iop.org
A covariant modified gravity (MOG) is formulated by adding to general relativity two new
degrees of freedom, a scalar field gravitational coupling strength G= 1/χ and a gravitational …
degrees of freedom, a scalar field gravitational coupling strength G= 1/χ and a gravitational …
NGC 1052-DF2 and modified gravity (MOG) without dark matter
JW Moffat, VT Toth - Monthly Notices of the Royal Astronomical …, 2019 - academic.oup.com
We model the velocity dispersion of the ultradiffuse galaxy NGC 1052-DF2 using Newtonian
gravity and modified gravity (MOG). The velocity dispersion predicted by MOG is higher than …
gravity and modified gravity (MOG). The velocity dispersion predicted by MOG is higher than …
Gravitational theory of cosmology, galaxies and galaxy clusters
JW Moffat - The European Physical Journal C, 2020 - Springer
A modified gravitational theory explains early universe and late time cosmology, galaxy and
galaxy cluster dynamics. The modified gravity (MOG) theory extends general relativity (GR) …
galaxy cluster dynamics. The modified gravity (MOG) theory extends general relativity (GR) …