89 citations · 1.1k across the 48 of their papers we have counts for
48 papers
Generalized second law of thermodynamics in massive gravity
Mohammad Beigmohammadi, Kayoomars Karami
Here, we study the generalized second law (GSL) of thermodynamics in the framework of massive gravity. To do this, we consider a FRW universe filled only with matter and enclosed b…
The Effect of Flow and Magnetic Twist on Resonant Absorption of Slow MHD Waves in Magnetic Flux Tubes
Mohammad Sadeghi, Karam Bahari, Kayoomars Karami
Observations show that there are twisted magnetic flux tubes and plasma flow throughout the solar atmosphere. The main purpose of this work is to obtain the damping rate of sausage…
Primordial black holes ensued from exponential potential and coupling parameter in nonminimal derivative inflation model
Soma Heydari, Kayoomars Karami
Here, Primordial Black Holes (PBHs) creation from exponential potential has been inquired, through gravitationally raised friction emanated from the nonminimal coupling between gra…
Non-Gaussianity and Secondary Gravitational Waves from Primordial Black Holes Production in -attractor Inflation
Kazem Rezazadeh, Zeinab Teimoori, Saeid Karimi +1
We study the non-Gaussianity and secondary Gravitational Waves (GWs) in the process of the Primordial Black Holes (PBHs) production from inflation. In our work, we focus on the …
Higher order mimetic gravity after GW170817
Kimya Sharafati, Soma Heydari, Kayoomars Karami
On the 17th of August 2017, the thriving discovery of gravitational waves event GW170817 and its optical counterpart GRB170817A, owing to coalescing of two neutron starts divulged…
Primordial black holes formation and secondary gravitational waves in nonminimal derivative coupling inflation
Zeinab Teimoori, Kazem Rezazadeh, Kayoomars Karami
We study the possibility of the Primordial Black Holes (PBHs) formation with the aim of finding a considerable fraction of Dark Matter (DM), using the gravitationally enhanced fric…