6 citations · 18 across the 7 of their papers we have counts for
17 papers · 1 filter
Brans Dicke scalar-tensor gravity and unimodular FRW cosmology with Coleman-Weinberg potential
Manda Malekpour, Hossein Ghaffarnejad
As alternative gravity theories with respect to the general relativity, the Brans-Dicke (BD) scalar tensor model is well known for which the BD parameter is controller the best fit…
Stabilization of spherically symmetric static Boson stars by Coleman-Weinberg self-interaction potential
Firoozeh Eidizade, Hossein Ghaffarnejad
Our motivation in this work is due to the great importance of relativistic boson stars as fierce competitors of black holes. From theoretical perspective, they described by complex…
Canonical quantization of modified non-gauge invariant Einstein-Maxwell gravity and stability of spherically symmetric electrostatic stars
Hossein Ghaffarnejad
We consider a non-minimally coupled Einstein-Maxwell gravity with no symmetry property to study stability of an electrostatic star via canonical quantization approach and ob…
Thermodynamic phase transition of Anti-de Sitter Reissner-Nordström black holes with exotic Einstein-Maxwell gravities
Hossein Ghaffarnejad, Elham Ghasemi
To consider the inevitable cosmic magnetic effects instead of the unknown dark sector of matter/energy on the inflation phase of the expanding universe some authors have proposed s…
On the stability of electrostatics stars with modified non-gauge invariant Einstein-Maxwell gravity
Hossein Ghaffarnejad, Tohid Ghorbani, Firoozeh Eidizadeh
We use a modified Einstein-Maxwell gravity to study stability of an electrostatic spherical star. Correction terms in this model are scalers which are made from contraction of Ricc…
Modified Gauge Invariant Einstein Maxwell Gravity and Stability of Spherical perfect fluid Stars with Magnetic Monopoles
Hossein Ghaffarnejad, Leyla Naderi
As an alternative gravity model we consider an extended Einstein-Maxwell gravity containing a gauge invariance property. Extension is assumed to be addition of a directional coupli…