论文标题
在自我互动Brans-Dicke理论中的扩展引力解耦溶液
Extended Gravitational Decoupled Solutions in Self-interacting Brans-Dicke Theory
论文作者
论文摘要
在本文中，我们通过在自我互动Brans-Dicke理论的背景下通过扩展的引力去耦方法从已知的各向同性溶液中构建各向异性球形溶液。通过在径向和时间度量组件上施加几何变形，将场方程分解为两组。第一个阵列对应于各向同性流体，而各向异性源的影响仅限于第二组。各向同性扇区是通过各向同性溶液（Tolman IV/Krori-Barua）的度量函数确定的，而关闭第二系统的各向异性源需要两个约束。图形分析了大规模标量场以及分离参数对各向异性溶液物理特征的影响。我们还检查所获得的溶液的生存力，紧凑性，表面红移和稳定性。发现所得的解决方案遵循公认的物理趋势，即某些脱钩参数的值。
In this paper, we construct anisotropic spherical solutions from known isotropic solutions through extended gravitational decoupling method in the background of self-interacting Brans-Dicke theory. The field equations are decoupled into two sets by applying geometric deformations on radial as well as temporal metric components. The first array corresponds to isotropic fluid while influence of the anisotropic source is confined to the second set. The isotropic sector is determined through metric functions of isotropic solutions (Tolman IV/Krori-Barua) whereas two constraints on the anisotropic source are required to close the second system. The impact of the massive scalar field as well as the decoupling parameter on the physical characteristics of the anisotropic solutions is analyzed graphically. We also check the viability, compactness, surface redshift and stability of the obtained solutions. It is found that the resulting solutions follow accepted physical trend for some values of the decoupling parameter.
