论文标题
在F（R，T）修改理论中使用MIT袋EOS的各向异性紧凑型星的研究
A study of anisotropic compact star with MIT bag EoS in f(R,T) modified theory
论文作者
论文摘要
在当前的研究中，我们通过选择F（r，t）= R+2ξT来研究了一个各向异性奇怪的恒星特别是她的X-1的特定模型，在改性F（R，T）重力的背景下，R是RICCI量表，T是ricci scalar，T是能量孔的痕迹，并且ξ是耦合常数。为了获得修改后方程的解决方案，我们将buchdahl度量应用于我们的方程式。当问题由MIT袋模型方程式（pr = 1/3（ρ-4b））时，我们将考虑该案例，其中b是袋子恒定的。我们使用Schwarzschild内部时空时间计算未知参数的值，然后选择参数ξ，k，β的适当值，并为不同的ξ列表不同的袋子常数值。我们通过执行诸如能量条件，力平衡，绝热指数，红移等测试来检查模型的身体有效性。观察结果表明，提出的F（R，T）模型满足所有这些测试，并且非常可以接受。
In the current study, we investigated a specific model of anisotropic strange stars specially Her X-1, in the background of modified f(R,T) gravity by choosing f(R,T) = R+2ξT, where R is Ricci scalar, T is the trace of the energy-momentum tensor and ξ is a coupling constant. To obtained the solution for the modified field equations, we apply Buchdahl metric to our equations. We consider the case, when the matter is governed by MIT bag model equation of state as Pr =1/3(ρ -4B), where B is bag constant. We calculate the values of unknown parameters using Schwarzschild interior space-time followed by choosing the appropriate values of parameter ξ , K, β and also tabulated different values of bag constant for different ξ . We examine the physical validity of our model by performing tests such as energy conditions, equilibrium of the forces, the adiabatic index, redshift and some more. The observational results showed that the proposed f(R,T) model satisfies all these tests and are quite acceptable.
