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- W3021896928 abstract "In this work, a spherically symmetric and static relativistic anisotropic fluid sphere solution of the Einstein field equations is provided. To build this particular model, we have imposed metric potential $e^{2lambda(r)}$ and an equation of state. Specifically, the so-called modified generalized Chaplygin equation of state with $omega=1$ and depending on two parameters, namely, $A$ and $B$. These ingredients close the problem, at least mathematically. However, to check the feasibility of the model, a complete physical analysis has been performed. Thus, we analyze the obtained geometry and the main physical observables, such as the density $rho$, the radial $p_{r}$, and tangential $p_{t}$ pressures as well as the anisotropy factor $Delta$. Besides, the stability of the system has been checked by means of the velocities of the pressure waves and the relativistic adiabatic index. It is found that the configuration is stable in considering the adiabatic index criteria and is under hydrostatic balance. Finally, to mimic a realistic compact object, we have imposed the radius to be $R=9.5 [km]$. With this information and taking different values of the parameter $A$ the total mass of the object has been determined. The resulting numerical values for the principal variables of the model established that the structure could represent a quark (strange) star mixed with dark energy." @default.
- W3021896928 created "2020-05-13" @default.
- W3021896928 creator A5038743328 @default.
- W3021896928 creator A5054595166 @default.
- W3021896928 creator A5067487631 @default.
- W3021896928 creator A5075250490 @default.
- W3021896928 date "2020-05-01" @default.
- W3021896928 modified "2023-10-17" @default.
- W3021896928 title "Relativistic anisotropic fluid spheres satisfying a non-linear equation of state" @default.
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