论文标题
使用重力波对暗能量的各向异性应力的预测约束
Forecast constraints on Anisotropic Stress in Dark Energy using gravitational-waves
论文作者
论文摘要
研究未来的实验对他人（当前或将来的实验）的表现总是很有趣的。宇宙学确实是一个令人兴奋的领域，其中许多难题仍然未知。在本文中，我们考虑了存在各向异性应力的广义黑能（DE）方案。我们限制了这种广义的宇宙场景，目的是研究引力波标准警报器（GWSS）如何限制各向异性应力，根据标准宇宙学探测，这种应力仍然不受限制。为此，我们从$ \ Mathcal {o}（10^3）$模拟GW事件中生成亮度距离测量值，该事件与Einstein望远镜的预期灵敏度匹配。我们的分析报告说，首先，与通常的宇宙学探针相比，GWS可以对各种宇宙学参数产生更好的限制，但是即使在包含GWSS之后，由于暗能量各向异性胁迫而出现的粘性声速也完全没有受到约束。
It is always interesting to investigate how well can a future experiment perform with respect to others (present or future ones). Cosmology is really an exciting field where a lot of puzzles are still unknown. In this article we consider a generalized dark energy (DE) scenario where anisotropic stress is present. We constrain this generalized cosmic scenario with an aim to investigate how gravitational waves standard sirens (GWSS) may constrain the anisotropic stress, which according to the standard cosmological probes, remains unconstrained. In order to do this, we generate the luminosity distance measurements from $\mathcal{O} (10^3)$ mock GW events which match the expected sensitivity of the Einstein Telescope. Our analyses report that, first of all, GWSS can give better constraints on various cosmological parameters compared to the usual cosmological probes, but the viscous sound speed appearing due to the dark energy anisotropic stress, is totally unconstrained even after the inclusion of GWSS.
