Gravitational waveform and polarization from binary black hole inspiral in dynamical Chern-Simons gravity: from generation to propagation

Z Li, J Qiao, T Liu, T Zhu, W Zhao - Journal of Cosmology and …, 2023 - iopscience.iop.org
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 …

Barred spiral galaxies in modified gravity theories

M Roshan, I Banik, N Ghafourian, I Thies… - Monthly Notices of …, 2021 - academic.oup.com
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 …

[HTML][HTML] Modified gravity (MOG), the speed of gravitational radiation and the event GW170817/GRB170817A

MA Green, JW Moffat, VT Toth - Physics Letters B, 2018 - Elsevier
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 …

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 …

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 …

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 …

Jeans analysis in modified gravity

M Roshan, S Abbassi - Physical Review D, 2014 - APS
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 …

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 …

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 …

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) …