arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.09841astro-ph.CO
收藏

模拟标准海妖对宇宙学参数估计的影响

Impacts of the simulated standard siren on estimating cosmological parameters

Dong Zhao, Zhi-Chao Zhao, Jun-Qing Xia

摘要:

提出了一种基于从引力波信号中提取引力波参数的方法来模拟中子星双星合并事件。我们模拟1000千兆瓦的标准警报器的基础上观测的爱因斯坦望远镜(ET)。几乎所有模拟的GW数据都在$[0,3]$的红移范围内。研究了GW标准海妖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,宇宙学参数的简并性被GW数据打破。GW标准海妖有助于宇宙学参数的约束。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑