Relativistic Krori-Barua Compact Stars in $f(R,T)$ Gravity

Abstract

This work aims to investigate the behaviour of compact stars in the background of $f(R,T)$ theory of gravity. For current work, we consider the Krori-Barua metric potential i.e., $\nu (r)=B{r}^2+C$ and $\lambda (r)=A{r}^2,$ where, $A,B$ and $C$ are constants. We use matching conditions of spherically symmetric space-time with Schwarzschild solution as an exterior geometry and examine the physical behaviour of stellar structure by assuming the exponential type $f(R,T)$ gravity model. In the present analysis, we discuss the graphical behaviour of energy density, radial pressure, tangential pressure, equation of state parameters, anisotropy and stability analysis respectively. Furthermore, an equilibrium condition can be visualized through the modified Tolman-Oppenheimer-Volkov equation. Some extra features of compact stars i.e. mass-radius function, compactness factor and surface redshift have also been investigated. Conclusively, all the results in current study validate the existence of compact stars under exponential $f(R,T)$ gravity model.

11 pages, 9 figures

References in corpus (15)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
• f(R,T) gravity
• Disappearing cosmological constant in f(R) gravity
• Modified f(R) gravity consistent with realistic cosmology: from matter dominated epoch to dark energy universe
• Class of viable modified $f(R)$ gravities describing inflation and the onset of accelerated expansion
• Bounds on the basic physical parameters for anisotropic compact general relativistic objects
• The Mass and Radius of the Neutron Star in 4U 1820-30
• Hydrostatic equilibrium and stellar structure in f(R)-gravity
• Compact stars in $f(R,T)$ gravity
• Some Exact Solutions in $f(\mathcal{G},T)$ Gravity via Noether Symmetries
• Neutron stars in $f(R,T)$ gravity with conserved energy-momentum tensor: Hydrostatic equilibrium and asteroseismology
• Charged strange star with Krori-Barua potential in $f(R,T)$ gravity admitting Chaplygin equation of state
• Tolman-Oppenheimer-Volkoff Equations in Modified Gauss-Bonnet Gravity
• Embedded Class-I Solution of Compact Stars in $f(R)$ Gravity with Karmarkar Condition

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