We explore the aspects of the electromagnetism on the stability of gravastar in a particular modified theory, i.e. f(R,T,Q) where Q = RμνTμν, R is the Ricci scalar and T is the trace of energy–momentum tensor. We assume a spherically symmetric static metric coupled comprising of perfect fluid in the presence of electric charge. The purpose of this paper is to extend the results of [S. Ghosh, F. Rahaman, B. K. Guha and S. Ray, Phys. Lett. B 767 (2017) 380.] to highlight the effects of f(R,T,Q) gravity in the formation of charged gravastars. We demonstrated the mathematical formulation, utilizing different equations of state, for the three respective regions (i.e. inner, shell, exterior) of the gravastar. We have matched smoothly the interior de Sitter and the exterior Reissner–Nordström metric at the hypersurface. At the end we extracted few conclusions by working on the physical features of the charged gravastar, mathematically and graphically.

中文翻译：

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f(R,T,RμνTμν) 重力下的带电重力星

我们在一个特定的修正理论中探讨了电磁学对 gravastar 稳定性的影响，即F(R,吨,问)在哪里问 = Rμν吨μν,R是 Ricci 标量和吨是能量-动量张量的迹。我们假设一个球对称静态度量耦合，包括存在电荷的完美流体。本文的目的是扩展 [S. Ghosh、F. Rahaman、BK Guha 和 S. Ray，物理。莱特。乙 767(2017) 380.] 突出效果F(R,吨,问)重力在带电重力星的形成中。我们演示了利用不同状态方程的数学公式，用于 gravastar 的三个相应区域（即内部、外壳、外部）。我们在超曲面处顺利匹配了​​内部 de Sitter 和外部 Reissner–Nordström 度量。最后，我们通过研究带电重力星的物理特征，从数学和图形上得出了一些结论。