论文标题
纯Lovelock几何形状对恒星结构的物理含义
Physical Implications of Pure Lovelock Geometry on Stellar Structure
论文作者
论文摘要
我们在纯Lovelock Gravity的框架内构建具有状态的线性压缩方程和雀科的潜力的精确各向异性星模型。很容易推导与适当极限的相应爱因斯坦模型的比较。显然,与其爱因斯坦对应物相比,Lovelock贡献引起的较高的曲率效应会产生较低的密度,压力,表面张力和各向异性因子。在爱因斯坦病例中达到了惯性的最大力矩,因此可以推断出lovelock效应软化状态方程。该模型满足各种稳定性测试。
We construct an exact anisotropic star model with a linear barotropic equation of state and with Finch-Skea potential within the framework of pure Lovelock gravity. A comparison with the corresponding Einstein model in a suitable limit is easily deduced. Evidently higher curvature effects induced by the Lovelock contributions generate lower densities, pressures, surface tensions and anisotropy factors when compared to its Einstein counterpart. The maximum moment of inertia is attained for the Einstein case and hence it may be inferred that Lovelock effects soften the equation of state. The model satisfies various stability tests.