18 papers
Cosmological Tests of Dark Energy Model in FRW Universe
Himanshu Chaudhary, Amine Bouali, Niyaz Uddin Molla +2
This research article presents a new cosmological model formulated within the framework, focusing on the observational signatures and parameter constraints of the model.…
CDM Model: Cosmological Implications and Dynamical System Analysis
Himanshu Chaudhary, Ratul Mandal, Masroor Bashir +2
We investigated a time-varying cosmological constant model using recent BAO measurements from DESI DR2, combined with Type Ia supernova samples (Pantheon, DES-Dovekie, and Un…
Compact Objects in 4D Einstein Gauss Bonnet Gravity A Data Based Perspective
Puja Mukherjee, Himanshu Chaudhary, Ujjal Debnath +1
Cosmic evolution is the most sensational topic among researchers of modern cosmology. This article explores cosmic evolution in 4D Einstein Gauss Bonnet gravity, focusing on mass a…
SSFDE Model: Cosmological Implications and Dynamical System Analysis
Ritika Nagpal, Anil Kandel, Ratul Mandal +2
In this paper, we consider an interacting scalar field dark energy model with an exponential potential and a dark sector coupling \( Q = 3γHÏ_{dm} \), which has been observationa…
Co-existence of alternative Generalized Chaplygin Gas and other Dark Energies in the Framework of Fractal Universe
Mahasweta Biswas, Rikpratik Sengupta, Ujjal Debnath
We have explored the possibility of the co-existence of two forms of dark energy in the form of an alternative Generalized Chaplygin Gas (GCG) along with a scalar field of field th…
Strong gravitational lensing by black hole in F(R) Euler Heisenberg Gravity's Rainbow
Sayan Naskar, Niyaz Uddin Molla, Ujjal Debnath
We investigate gravitational lensing in the strong-field regime for a black hole in F(R) Euler Heisenberg Gravity with Rainbow gravity modifications. This black hole spacetime is c…