309 citations · 845 across the 18 of their papers we have counts for
4 papers · 1 filter
Quasinormal Modes of a Black Hole with Quadrupole Moment
Alireza Allahyari, Hassan Firouzjahi, Bahram Mashhoon
We analytically determine the quasinormal mode (QNM) frequencies of a black hole with quadrupole moment in the eikonal limit using the light-ring method. The generalized black hole…
Imprints of local lightcone projection effects on the galaxy bispectrum IV: Second-order vector and tensor contributions
Sheean Jolicoeur, Alireza Allahyari, Chris Clarkson +3
The galaxy bispectrum on scales around and above the equality scale receives contributions from relativistic effects. Some of these arise from lightcone deformation effects, which…
Circularly Polarized EM Radiation from GW Binary Sources
Soroush Shakeri, Alireza Allahyari
We consider the polarization characteristics of the electromagnetic (EM) counterpart of the gravitational wave (GW) created by coalescence of the binary sources. Here, we explore t…
Nonlinear phenomena in general relativity
Alireza Allahyari, Javad T. Firouzjaee, Reza Mansouri
The perturbation theory plays an important role in studying structure formation in cosmology and post-Newtonian physics, but not all phenomena can be described by the linear pertur…