The physics of the dark sector has remained one of the controversial areas of modern cosmology at present and hence it naturally attracts massive attention to the scientific community. With the developments of the astronomical data, the physics of the dark sector is becoming much more transparent than it was some twenty years back. The detection of gravitational waves (GWs) has now opened a cluster of possibilities in the cosmological regime. Being motivated by the detection of GWs and its possible impact on the physics of dark matter and dark energy, in this work we focus on the interacting dark energy models. Assuming the simplest possibility in which the vacuum energy with equation-of-state $w_x =-1$ is allowed to interact with the pressureless dark matter, we have extracted the constraints of the cosmological parameters. We find that the addition of the GWs data to the CMB measurements significantly improves up to a factor 4 of the parameters space, and up to a factor 2 for the full combination of current cosmological datasets, namely CMB+BAO+Pantheon+RSD+R16+CC+WL. The most affected parameters by the inclusion of the GWs are $\Omega_ch^2$, $\theta_{MC}$, $\xi$, and the derived parameters $\Omega_{m0}$, $\sigma_8$ and $H_0$.

中文翻译：

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使用引力波预测相互作用的真空能量模型

暗区物理学目前仍是现代宇宙学的争议领域之一，自然引起科学界的广泛关注。随着天文数据的发展，暗区的物理学正变得比大约二十年前更加透明。引力波 (GW) 的探测现在已经在宇宙学领域开启了一系列可能性。受引力波的检测及其对暗物质和暗能量物理可能产生的影响，在这项工作中，我们专注于相互作用的暗能量模型。假设最简单的可能性是允许状态方程为$w_x =-1$的真空能量与无压暗物质相互作用，我们已经提取了宇宙学参数的约束。我们发现，将 GWs 数据添加到 CMB 测量中显着提高了参数空间的 4 倍，对于当前宇宙学数据集的完整组合，即 CMB+BAO+Pantheon+RSD+R16 的完全组合提高了 2 倍+CC+WL。包含 GW 影响最大的参数是 $\Omega_ch^2$、$\theta_{MC}$、$\xi$，以及派生参数 $\Omega_{m0}$、$\sigma_8$ 和 $H_0 $.