论文标题
隐藏在暗物质光环和空隙中的动态暗能特性
Dynamical Dark Energy Properties Hidden in the Dark Matter Halos and Voids
论文作者
论文摘要
在本文中，我们分析了以红移z = 0.0和z = 0.8进行的基于GR的N体模拟的光晕和空隙性能，因为动态暗能量模型（即PL和CPL）相对于LCDM之间的差异。分析光晕表明，尽管光晕的速度分散速度对动力学的暗能能模型更敏感，但模型PL和CPL的表现都像LCDM一样。此外，开发了一个空隙查找器，以从模拟数据中提取空隙的性能。空隙的进一步统计模型证实，PL模型会产生较大的空隙。总而言之，我们的新型模拟表明，在区分暗能模型时，空隙性能优于光环特性。因此，结果表明，在歧视动态暗能模型的未来研究中，更多地利用了空隙的特性。
In this paper, we analysed the halos and voids properties of a GR-based N-body simulation carried out at redshifts z= 0.0 and z= 0.8 as differences between dynamical dark energy models (namely PL and CPL) with respect to LCDM. Analysing the halos demonstrates that both models, PL and CPL, behave like LCDM, despite the velocity dispersion of halos was more sensitive to the dynamical dark energy model. In addition, a void finder was developed to extract the properties of voids from simulated data. Further statistical model on voids confirms that the PL model produces larger voids. In summary, our novel simulation demonstrates void properties are better than halo properties in discriminating between dark energy models. Hence, the results suggest to make more use of the properties of voids in future studies of discriminating dynamical dark energy models.
