论文标题
模拟标准警报器对估计宇宙学参数的影响
Impacts of the simulated standard siren on estimating cosmological parameters
论文作者
论文摘要
我们提出了一种基于从GW信号提取重力波（GW）参数的过程来模拟二进制中子星（BNS）合并事件的方法。我们基于爱因斯坦望远镜（ET）的观察，模拟了1000 GW标准警报器。几乎所有模拟的GW数据都在$ [0,3] $的红移范围内。研究了GW标准警报器在宇宙学参数推断中的作用。我们发现GW数据可以帮助提高宇宙学参数的准确性。此外，GW数据破坏了宇宙学参数的退化。 GW标准警报器有助于宇宙学参数的约束。
We propose a method based on the process of extracting gravitational wave (GW) parameters from GW signals to simulate the binary neutron-star (BNS) merging events. We simulate 1000 GW standard sirens based on the observation of the Einstein Telescope (ET). Almost all the simulated GW data are in the redshift range of $[0,3]$. The role of the GW standard siren in the inference of the cosmological parameters is investigated. We find that the GW data can help improve the accuracy of cosmological parameters. Moreover, the degeneracy of cosmological parameters is broken by the GW data. The GW standard siren is helpful for the constraint of the cosmological parameters.
