16 citations · 46 across the 11 of their papers we have counts for
11 papers
Constraints on Dark Energy from the Gravitational Wave Background
Jafar Khodagholizadeh
Current observational data indicate that dark energy (DE) is a cosmological constant without considering its conclusiveness evidence. Considering the dynamic nature of individu…
Cosmic Birefringence as a probe of dark matter nature: Sterile neutrino and dipolar dark matter
Jafar Khodagholizadeh, S. Mahmoudi, R. Mohammadi +1
Recently, non-zero rotation angle [Phys. Rev. Lett. \textbf{128}, no.9, 091302 (2022)] has been reported for linear polarization of…
CMB Polarization by the Asymmetric Template of Scalar Perturbations
Jafar Khodagholizadeh, Rohoollah Mohammadi, S. M. S. Movahed
Inspired by a dipole asymmetric template for the CMB temperature map in the primordial scalar fluctuations observed by Planck at a large scale, we examine the contribution of a sim…
Gravitational Waves with Dark Energy
J. Khodagholizadeh
In this article, we study the tensor mode equation of perturbation in the presence of nonzero-Lambda as dark energy, the dynamic nature of which depends on the Hubble parameter H a…
Tensor Modes Damping in Matter and Vacuum Dominated Era
Jafar Khodagholizadeh, Amir H. Abbassi, Ali A. Asgari
The present paper has developed an integro-differential equation to propagate cosmological gravitation waves in matter-dominated era in accounting for the presence of free streamin…
Lorentz violation and red shift of gravitational waves in brane-worlds
Fatemeh Ahmadi, Jafar Khodagholizadeh, H. R. Sepangi
In this paper we study the speed of gravitational waves in a brane world scenario and show that if the extra dimension is space-like, the speed of the propagation of such waves is…