85 citations · 150 across the 9 of their papers we have counts for
9 papers
Instability and no-hair paradigm in d-dimensional charged-AdS black holes
Afsaneh Rahmani, Mohsen Khodadi, Matin Honardoost +1
Is it possible the no-hair paradigm is violated when a black hole undergoes an instability? Employing massless charged scalar perturbations, we address this question within the con…
Thermal phase transition in -charged -scalar theory
A. Rahmani, M. Honardoost, H. R. Sepangi
We investigate instabilities of -charged black holes by a massive charged scalar field in a linear perturbation regime. We study tachyonic instabilities as the near…
Final state of instabilities in Born-Infeld black holes
A. Rahmani, M. Honardoost, H. R. Sepangi
We study two types of linear instabilities in Einstein-Born-Infeld-scalar field theory and show that small Born-Infeld (BI) black holes suffer from superradiant instability within…
Hairy Waves: Gravitational Waves in the presence of Screening Mechanism
Matin Honardoost, Nima Khosravi, Nafiseh Rahmanpour
We consider a binary system in the context of screened modified gravity models and investigate its emitted gravitational wave which has been shown that is a hairy wave. We derive p…
Superradiant instability and asymptotically AdS hairy black holes in -charged scalar field theory
A. Rahmani, M. Honardoost, H. R. Sepangi
We study the phenomena of superradiance for -Maxwell black holes in an AdS space-time. The AdS boundary plays the role of a mirror and provides a natural confining system tha…
Symmetron with a non-minimal kinetic term
M. Honardoost, D. F. Mota, H. R. Sepangi
We investigate the compatibility of the Symmetron with dark energy by introducing a non-minimal kinetic term associated with the Symmetron. In this new model, the effect of the fri…
Thawing in a coupled quintessence model
M. Honardoost, H. Mohseni Sadjadi, H. R. Sepangi
We consider the thawing model in the framework of coupled quintessence model. The effective potential has symmetry which is broken spontaneously when the dark matter density…
Symmetry breaking and the onset of cosmic acceleration in scalar field models
H. Mohseni Sadjadi, M. Honardoost, H. R. Sepangi
We propose a new scenario for the onset of positive acceleration of our Universe based on symmetry breaking in coupled dark energy scalar field model. In a symmetry breaking proces…
Thermodynamics second law and crossing(s) in interacting holographic dark energy model
H. Mohseni Sadjadi, M. Honardoost
By the assumption that the thermodynamics second law is valid, we study the possibility of crossing in interacting holographic dark energy model. Depending on the choice of…