Anisotropic extensions of isotropic Finch–Skea metric in the charged modified gravity  

作　　者：Tayyab Naseer M Sharif 

机构地区：[1]Department of Mathematics and Statistics,The University of Lahore,1-Km Defence Road,Lahore 54000,Pakistan

出　　处：《Communications in Theoretical Physics》2024年第9期118-140,共23页理论物理通讯（英文版）

摘　　要：In this study,we explore the Finch–Skea perfect fluid solution and extend its domain to three distinct anisotropic interior models within the framework of the f(R,T)theory,incorporating the influence of an electromagnetic field.We assume a static spherical spacetime initially coupled with an isotropic matter distribution.We then introduce a Lagrangian corresponding to an additional gravitating source,taking into account its role in inducing pressure anisotropy within the original fluid source.By deriving the field equations for the combined matter setup,we applied a radial component transformation,which yielded two distinct systems of equations.In addition,we consider a charged exterior spacetime to determine the three constants associated with the Finch–Skea solution at the boundary.Our findings suggest that under certain parametric choices,all three resulting models exhibited physical relevance within this modified theory.

关 键 词：ANISOTROPY modified gravity gravitational decoupling 

分 类 号：O314[理学—一般力学与力学基础]