Study of charged spherical collapse in 
                
                  
                
                $f(\mathcal{G},T)$
                
                  
                    
                      f
                      (
                      𝒢
                      ,
                      T
                      )
                    
                  
                
               gravity

Sharif, M.; Gul, M. Zeeshan

doi:10.1140/epjp/i2018-12178-7

Cited by 43 publications

(5 citation statements)

References 37 publications

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“…We have studied the dynamics of spherical and cylindrical stars through Misner‐Sharp technique in

f(\mathcal {G},\mathrm{T})

gravity and found that higher‐order terms of this modified theory and charge behave as a repulsive force and increase the stability of the system. [ 47 ] Rahaman et al [ 48 ] examined viable features of anisotropic relativistic objects with Karmarkar condition in

f(\mathcal {R},\mathrm{T})

gravity. We have analyzed the viability and stability of compact stars with different matter distributions in

f(\mathcal {R},\mathbb {T}^{2})

theory.…”

Section: Literature Reviewmentioning

confidence: 99%

Study of Charged Anisotropic Karmarkar Stars in f(R,T2)$f(\mathcal {R},\mathbb {T}^{2})$ Theory

Sharif

Gul

2023

Fortschritte der Physik

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This paper examines the viable attributes of charged compact stars with anisotropic matter configuration in ffalse(scriptR,T2false)$f(\mathcal {R},\mathbb {T}^{2})$ theory. For this purpose, we use the embedding class‐1 technique and consider a specific functional form of this modified theory, i.e, f(R,double-struckT2)=scriptR−γT2$f(\mathcal {R},\mathbb {T} ^{2})=\mathcal {R}-\gamma \mathbb {T}^{2}$ to examine the geometry of compact objects. The values of unknown parameters are found by the smooth matching of interior (static spherical metric) and exterior (Reissner‐Nordstrom metric of energy‐momentum squared gravity) spacetimes. We investigate the impact of effective fluid parameters anisotropy, equation of state parameters and energy bounds in the inner region of the charged stellar objects. The stability of the stellar models in the presence of charge is examined by speed of sound and adiabatic index. We find that embedding class‐1 solution is physically viable and stable for charged anisotropic stellar objects in this modified theory.

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“…We have studied the dynamics of spherical and cylindrical stars through Misner‐Sharp technique in

f(\mathcal {G},\mathrm{T})

f(\mathcal {R},\mathrm{T})

gravity. We have analyzed the viability and stability of compact stars with different matter distributions in

f(\mathcal {R},\mathbb {T}^{2})

theory.…”

Section: Literature Reviewmentioning

confidence: 99%

Study of Charged Anisotropic Karmarkar Stars in f(R,T2)$f(\mathcal {R},\mathbb {T}^{2})$ Theory

Sharif

Gul

2023

Fortschritte der Physik

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“…They found that their constraints of dynamical instability are independent of stiffness parameter due to the presence of vacuum core. The study of dynamical instability constraints for non-static compact objects when coupled with the imperfect fluid in astrophysics and cosmology are being discussed by various researchers [29][30][31][32]. They concluded that the dark terms of curvature tend to increase the regions of stability.…”

Section: Jcap09(2019)011mentioning

confidence: 99%

Dissipative self-gravitating systems in modified gravity

Bhatti

Bamba

Yousaf

et al. 2019

J. Cosmol. Astropart. Phys.

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We discuss the gravitational collapse of spherical compact objects in the background of f (R, T, Q) theory, where R represent the Ricci scalar, T is the trace of energy momentum tensor while Q ≡ R µν T µν , and investigate the influence of anisotropy and heat dissipation in this scenario. We provide an analysis on the role of distinct material terms considered while studying the dynamical equation. The dynamical equation is coupled with a heat transport equation and discussed in the background of f (R, T, Q) theory of gravity. The reduction element in the density of inertial mass, is re-acquired which is based on the internal position of thermodynamics. In collation with the equivalence relation, the reduction quantity in density is similar as appeared with gravitational force. We formulate the connection of Weyl tensor with different matter variables to see the non-identical outcomes. The inhomogeneous nature of energy density is also analyzed in the framework of modified gravity.

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“…They found that all the physical parameters have been more consistent in the case of Her X-1 star candidate which favor the  ( ) f , T gravity model. We have discussed the dynamics of gravitational collapse with different matter distributions in the same theory [48]. Mustafa et al [49] analyzed anisotropic fluid spheres admitting Karmarkar condition in this gravity.…”

Section: Introductionmentioning

confidence: 99%

Role of f(\mathcal{R},\mathbf{T}^{2}) Theory on Charged Compact Stars

Sharif

Gul²

2023

Phys. Scr.

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The main purpose of this paper is to examine the viable attributes of charged compact stellar objects with anisotropic matter configuration in the framework of $f(\mathcal{R},\mathbf{T}^{2})$ theory. For this purpose, we use Tolman V solution and consider a specific functional form of this modified theory to examine the geometry of compact stars. The values of unknown parameters are found by the smooth matching of interior (static spherical metric) and exterior (modified Reissner-Nordstrom metric) spacetimes. We investigate the behavior of effective matter variables, anisotropy, equation of state parameters and energy bounds in the interior of the charged stellar objects. The stability of the compact stars is examined by speed of sound and adiabatic index. We find that the considered stars are viable as well as stable with all the required conditions in this modified theory of gravity.

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Study of charged spherical collapse in $f(\mathcal{G},T)$ f ( 𝒢 , T ) gravity

Cited by 43 publications

References 37 publications

Study of Charged Anisotropic Karmarkar Stars in f(R,T2)$f(\mathcal {R},\mathbb {T}^{2})$ Theory

Study of Charged Anisotropic Karmarkar Stars in f(R,T2)$f(\mathcal {R},\mathbb {T}^{2})$ Theory

Dissipative self-gravitating systems in modified gravity

Role of f(\mathcal{R},\mathbf{T}^{2}) Theory on Charged Compact Stars

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