论文标题
在爱因斯坦重力的情况下
Dark Energy Stars in Tolman-Kuchowicz spacetime in the context of Einstein Gravity
论文作者
论文摘要
暗能量是当前宇宙中最丰富的组成部分，它是宇宙加速扩张的原因。结果，暗能量可能与任何紧凑的天体物理对象相互作用[Muhammad F.A.R. Sakti和Anto Sulaksono，{\ it phys。修订版D} {\ bf 103}，084042（2021）]。在目前的论文中，我们提出了一个由黑暗和普通物质组成的暗能量星的模型，其中暗能的密度与各向同性完美的流体物质的密度成正比。在一般相对性的背景下，该模型是在弯曲的Tolman-Kuchowicz时空几何形状中得出的[Tolman，Phys Rev 55：364，（1939）； Kuchowicz，Acta Phys Pol 33：541，（1968）]。在这里，我们研究了深色能量如何影响恒星质量，紧凑度和平衡等。研究模型的物理参数，例如压力，密度，质量功能，表面红移等，并详细研究了恒星构型的稳定性。该模型具有有趣的属性，因为它符合所有能量标准，并且没有中央奇点。借助$ M-R $图，从我们的模型中获得了最大允许质量。我们分析了模型的许多物理特性，并检查了它是否符合所有规律性约束，是稳定的，因此在物理上是现实的。
Dark energy is the component in the present Universe with the greatest abundance, and it is responsible for the accelerating expansion of the Universe. As a result, dark energy is likely to interact with any compact astrophysical object [Muhammad F.A.R. Sakti and Anto Sulaksono, {\it Phys. Rev. D} {\bf 103}, 084042 (2021)]. In present paper, we propose a model for a dark energy star made up of dark and ordinary matter in which the density of dark energy is proportional to the density of isotropic perfect fluid matter. In the context of general relativity, the model is derived in the curved Tolman-Kuchowicz spacetime geometry [Tolman, Phys Rev 55:364, (1939); Kuchowicz, Acta Phys Pol 33:541, (1968)]. Here, we look at how dark energy affects stellar mass, compactness, and equilibrium etc. The physical parameters of the model e.g., pressure, density, mass function, surface redshift etc. are investigated, and the stability of stellar configuration is studied in detail. The model has interesting properties because it meets all energy criteria and is free from central singularities. The maximum allowable mass has been obtained from our model with the help of $M-R$ diagram. We analyse many physical properties of the model and checked that it meets all regularity constraints, is stable, and therefore physically realistic.
