In the near future, the redshift drift observations in optical and radio bands will provide precise measurements on H(z) covering the redshift ranges of 2<z<5 and 0<z<0.3. In addition, gravitational wave (GW) standard siren observations could make measurements on the dipole anisotropy of luminosity distance, which will also provide the H(z) measurements in the redshift range of 0<z<3. In this work, we propose a multi-messenger and multi-wavelength observational strategy to measure H(z) based on the three next-generation projects, E-ELT, SKA, and DECIGO, and we wish to see whether the future H(z) measurements could provide tight constraints on dark-energy parameters. The dark energy models we consider include ΛCDM, wCDM, CPL, HDE, and IΛCDM models. It is found that E-ELT, SKA1, and DECIGO are highly complementary in constraining dark energy models. Although any one of these three data sets can only give rather weak constraints on each model we consider, the combination of them could significantly break the parameter degeneracies and give much tighter constraints on almost all the cosmological parameters. Moreover, we find that the combination of E-ELT, SKA1, DECIGO, and CMB could further improve the constraints on dark energy parameters, e.g., σ(w₀)=0.024 and σ(w_a)=0.17 in the CPL model, which means that these three promising probes will play a key role in helping reveal the nature of dark energy.

中文翻译：

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使用多信使和多波长观测策略，通过直接测量宇宙膨胀历史来探索暗能量的本质

在不久的将来，光学和无线电波段的红移漂移观测将提供精确的测量H(z) 覆盖红移范围 2<z<5 和 0<z<0.3。此外，引力波（GW）标准警报器观测可以测量光度距离的偶极子各向异性，这也将提供H(z) 在 0< 的红移范围内测量z<3。在这项工作中，我们提出了一种多信使和多波长观测策略来测量H(z) 基于三个下一代项目 E-ELT、SKA 和 DECIGO，我们希望看看未来的 H(z) 测量是否可以对暗能量参数提供严格的约束。我们考虑的暗能量模型包括ΛCDM、wCDM、CPL、HDE 和 IΛCDM 模型。发现E-ELT、SKA1和DECIGO在约束暗能量模型方面互补性强。尽管这三个数据集中的任何一个只能对我们考虑的每个模型给出相当弱的约束，但它们的组合可以显着打破参数简并性，并对几乎所有宇宙学参数给出更严格的约束。此外，我们发现 E-ELT、SKA1、DECIGO 和 CMB 的组合可以进一步改善对暗能量参数的约束，例如 σ(w₀ )=0.024 和 σ(w_a )=0.17 在 CPL 模型中，这意味着这三个有前途的探测器将在帮助揭示暗能量的性质方面发挥关键作用。