标题： 奇异点自由的各向异性奇怪的五元论星 显示英文标题

标题： Singularity free anisotropic strange quintessence star

摘要： 本文提出了一种对应于外部施瓦西度规的各向异性奇异星新模型。 在拟五重态场（由参数ωq表征）存在的情况下，利用Krori Barua (KB) 假设解出了爱因斯坦场方程。所得解不含中心奇点。 我们的模型具有潜在稳定性。从我们模型中获得的不同奇异星（SAXJ1808.4-3658（SS1）(半径=7.07 km)，4U1820-30 (半径=10 km)，Vela X-12 (半径=9.99 km)，PSR J 1614-2230 (半径=10.3 km))的质量数值与观测数据非常接近，这证实了我们所提出的模型的有效性。 在存在薄壳的情况下，内部解也匹配到外部施瓦西时空，在这种情况下需要负表面压力来防止薄壳坍塌。 显示英文摘要

摘要： Present paper provides a new model of anisotropic strange star corresponding to the exterior schwarzschild metric. The Einstein field equations have been solved by utilizing the Krori Barua (KB) ansatz in presence of quintessence field characterized by a parameter omegaq . The obtained solutions are free from central singularity. Our model is potentially stable.The numerical values of mass of the different strange stars SAXJ1808.4-3658(SS1)(radius=7.07 km),4U1820- 30 (radius=10 km),Vela X-12 (radius=9.99 km),PSR J 1614-2230 (radius=10.3 km) obtained from our model is very close to the observational data that confirms the validity of our proposed model. The interior solution is also matched to the exterior Schwarzschild spacetime in presence of thin shell where negative surface pressure is required to hold the thin shell against collapse.