5 papers
Effective reheating in Gauss--Bonnet inflation with coupling
Ali Seidabadi, Sara Saghafi, Kourosh Nozari
We study effective reheating in a scalar--Gauss--Bonnet inflationary model with a phase-space-dependent coupling , in which a compact field-space feature is combined with a…
Rotating Black Holes with Primary Scalar Hair: Shadow Signatures in Beyond Horndeski Gravity
Kourosh Nozari, Milad Hajebrahimi, Sara Saghafi +2
The Event Horizon Telescope (EHT) image of M87* provides a direct test of strong-field gravity, measuring an angular shadow diameter and a circularit…
Dimensional Phenomenology in Polymeric Quantization Framework
Kourosh Nozari, Hamed Ramezani
In this paper, we study the statistical mechanics within the polymer quantization framework in the semiclassical regime. We apply a non-canonical transformation to the phase space…
Accretion Process as a Probe of Extra Dimensions in MOG Compact Object Spacetimes
Kourosh Nozari, Sara Saghafi, Zeynab Ramezanpasandi
The idea of extra spatial dimensions arises from attempts to unify gravity with other fundamental interactions, develop a consistent theory of quantum gravity, and address open pro…
Shadow of Extreme Compact Charged Objects in Consistent 4-Dimensional Einstein-Gauss-Bonnet Gravity
Sara Saghafi, Kourosh Nozari, Maryam Kaveh
In order to better describe gravitational phenomena on both very small and cosmological scales, there have been constant attempts to generalize and expand the theory of General Rel…