f(R,T)引力作用下Reissner Nordström型致密球星的引力模型

S. Islam, P. Kumar
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引用次数: 0

摘要

摘要我们给出了在f(R,T)引力中球内带电流体分布的内解,它承认保角Killing矢量的存在。带电球体嵌入外部RN度量中。我们假设所有的物理量都处于静态平衡状态。在拉格朗日密度f(R,T)的特定形式下研究了理想流体物质,并应用了与外部RN度量的光滑匹配条件。还研究了溶液的能量条件和稳定性。这样一颗恒星表面的发射被显示为蓝移,而不是红移,我们计算了它的值。此外,流体在f(R,T)重力作用下本质上是非测地线的。
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Gravitational Model of Compact Spherical Reissner-Nordström-Type Star Under f(R, T) Gravity
Abstract We present the interior solutions of distributions of charged fluid inside a sphere in f (R, T) gravity and which admits the existence of conformal Killing vectors. The charged sphere is embedded in an exterior RN metric. We assume that all physical quantities axe in static equilibrium. The perfect fluid matter is studied under a particular form of the Lagrangian density f (R, T), and smooth matching conditions with the exterior RN metric are applied. The energy conditions as well as the stability of the solutions are also investigated. Emission from the surface of such a star is shown to blueshifted, rather than redshifted, and we calculate its value. Furthermore, the fluid body under f (R, T) gravity is shown to be non-geodesic in nature.
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