4 papers
Scale-Invariant Bounce Cosmology in Weyl f(Q) Gravity with Quintom Signature
Rita Rani, G. K. Goswami, J. K. Singh +2
We investigate a bouncing cosmological model within the Weyl-type gravity framework, employing a power-law form of the non-metricity scalar . The model successfully resol…
Photon orbits and phase transition for gravitational decoupled Kerr anti-de Sitter black holes
Suhail Khan, Shafqat Ul Islam, Sushant G. Ghosh +1
Interpreting the cosmological constant as the energy of the vacuum and using a gravitational decoupling approach leads to a new Kerr--anti-de Sitter (AdS) black hole. The metric of…
Evolution of the universe with quintessence model in Rastall gravity
J. K. Singh, Akanksha Singh, Shaily +2
We investigate the universe's evolution within the framework of Rastall gravity, which is an extension of the standard CDM model. Utilizing a linear parametrization of the Equa…
Investigating Rotating Black Holes in Bumblebee Gravity: Insights from EHT Observations
Shafqat Ul Islam, Sushant G. Ghosh, Sunil D. Maharaj
The EHT observation revealed event horizon-scale images of the supermassive black holes Sgr A* and M87* and these results are consistent with the shadow of a Kerr black hole as pre…