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10 papers · 1 filter
Null Fluid collapse in Rastall theory of gravity
Amir H. Ziaie, Yaser Tavakoli
A Vaidya spacetime is considered for gravitational collapse of a type II fluid in the context of Rastall theory of gravity. For a linear equation of state (EoS) for the fluid profi…
Wormholes in Poincarè gauge theory of gravity
Amir Hadi Ziaie, Christian Corda
In the present work, we {study} static spherically symmetric solutions representing wormhole configurations in Poincarè gauge theory ({\sf PGT}). The gravitational sector of the La…
Resonant absorption of kink oscillations in coronal flux tubes with continuous magnetic twist
Zanyar Ebrahimi, Karam Bahari
There are observational evidences for the existence of twisted magnetic field in the solar corona. Here, we have investigated resonant damping of the magnetohydrodynamic (MHD) kink…
Effects of Rastall parameter on perturbation of dark sectors of the Universe
A. H. Ziaie, H. Shabani, S. Ghaffari
In recent years, Rastall gravity is undergoing a considerable surge in popularity. This theory purports to be a modified gravity theory with a non-conserved energy-momentum tensor…
Tsallis holographic dark energy in Fractal Universe
S. Ghaffari, E. Sadri, A. H. Ziaie
We study the cosmological consequences of interacting Tsallis holographic dark energy model in the framework of the fractal universe, in which, the Hubble radius is considered as t…
Traversable wormholes in Einsteinian cubic gravity
Mohammad Reza Mehdizadeh, Amir Hadi Ziaie
In the present work we investigate wormhole configurations described by a constant redshift function in Einstein-Cubic gravity ({\sf ECG}). We derive analytical wormhole geometries…