activity
20102026
most citedThe Train Wreck Cluster Abell 520 and the Bullet Cluster 1E0657-558 in a Generalized Theory of Gravitation

24 citations · 39 across the 7 of their papers we have counts for

collaborators

7 papers

astro-ph.CO2026

CMB Acoustic Power Spectra in STVG-MOG

John W. Moffat

We present a cosmological realization of Scalar--Tensor--Vector Gravity (STVG--MOG) in which the pre-recombination scalar perturbation dynamics become degenerate with those of C…

astro-ph.CO2026

Cosmological Equivalence of Scalar-Tensor-Vector Modified Gravity and Cold Dark Matter

John W. Moffat

We show that Scalar-Tensor-Vector Gravity (STVG-MOG) is observationally equivalent to the standard model CDM cosmological model for all probes that depend on isotropic and linea…

astro-ph.CO2026

Modified Gravity and the Origin of the Excess Radio Galaxy Number-Count Dipole

John. W. Moffat

Recent analyses of wide-area radio-galaxy surveys have reported a statistically significant excess in the cosmic number-count dipole, with an amplitude exceeding the purely kinemat…

astro-ph.HE2025

Regular Rotating Black Hole: Probing the boundaries of the Radiative Signatures and Jet Power

Subhadip Sau, John W. Moffat

We perform a detailed observational analysis of several galactic X-ray binaries, focusing on the interplay between black hole spin, jet power, and radiative efficiency within the c…

astro-ph.GA2016★ 6 cited

Modified gravity (MOG) and the cluster Abell 1689 acceleration data

J. W. Moffat, M. H. Zhoolideh Haghighi

The galaxy cluster system Abell 1689 has been well studied and yields good lensing and X-ray gas data. Modified gravity (MOG) is applied to the cluster Abell 1689 and the accelerat…

astro-ph.CO2016★ 24 cited

The Train Wreck Cluster Abell 520 and the Bullet Cluster 1E0657-558 in a Generalized Theory of Gravitation

N. S Israel, J. W Moffat

A major hurdle for modified gravity theories is to explain the dynamics of galaxy clusters. A case is made for a generalized gravitational theory called Scalar-Tensor-Vector-Gravit…

gr-qc2010★ 9 cited

Can Modified Gravity (MOG) explain the speeding Bullet (Cluster)?

J. W. Moffat, V. T. Toth

We apply our scalar-tensor-vector (STVG) modified gravity theory (MOG) to calculate the infall velocities of the two clusters constituting the Bullet Cluster 1E0657-06. In the abse…