论文标题
SPH旋转物体的自我磨损的正压平衡构型
Self-gravitating barotropic equilibrium configurations of rotating bodies with SPH
论文作者
论文摘要
我们提出了一种新型的松弛方法，可以使用SPH技术构建正压体的三维旋转结构。该方法能够放松刚性和差异旋转中的气态结构。松弛过程强烈依赖于SPH技术表征的角动量的出色保护。该方法已成功地应用于各种零温的白色矮人和多层次自我造型结构。我们的SPH结果已通过比较主要特征（能量，中心密度和极性与赤道半径比）与具有独立的，基于网格的方法获得的主要特征（中心密度和极性比率）进行了验证，例如，自洽场方法表明，这两种方法都在很少的percents中同意。
We present a novel relaxation method to build three-dimensional rotating structures of barotropic bodies using the SPH technique. The method is able to relax gaseous structures in rigid as well as differential rotation. The relaxation procedure strongly relies on the excellent conservation of angular momentum that characterizes the SPH technique. The method has been successfully applied to a variety of zero-temperature white dwarfs and polytropic self-gravitating structures. Our SPH results have been validated by comparing the main features (energies, central densities and the polar to equatorial radius ratio) to those obtained with independent, albeit grid-based methods, as for example, the self-consistent field method, showing that both methods agree within few percents.
