Speaker
Saboura sadat Zamani
(University of Szczecin)
Description
We investigate non-minimal coupling (NMC) between dark matter and gravity. NMC is a theoretical extension of general relativity where the gravitational potential is modified by dark matter density gradients.
We analyze three ultra-diffuse galaxies (UDGs) with contrasting dark matter fractions to test whether NMC produces observable effects on galactic scales. We perform spherical Jeans dynamical modeling of these UDGs, exploring eight dark matter profiles. Using Bayesian inference with MCMC and nested sampling, we constrain the coupling length scale L and statistically compare General Relativity versus the NMC framework through Bayes factors.
Author
Saboura sadat Zamani
(University of Szczecin)