论文标题
揭示曲率对宇宙学模型的影响
Revealing the effects of curvature on the cosmological models
论文作者
论文摘要
在本文中，我们考虑在涉及自由到各个中微子部门的扩展宇宙学中添加曲率的影响和暗能量的不同参数化（DE）。我们利用Planck 2018 Cosmic微波背景温度和极化数据，Baryon声学振荡和Pantheon型IA Supernovae数据。我们的主要结果是，根据当前的天文数据，不能丢弃非平板宇宙，因为在这项工作中探索的大多数宇宙学中，我们找到了封闭宇宙的指示。另一方面，迫使宇宙保持平坦可以显着偏向于DE组件状态及其动力学性质方程的约束。
In this paper we consider the effects of adding curvature in extended cosmologies involving a free-to-vary neutrino sector and different parametrizations of Dark Energy (DE). We make use of the Planck 2018 cosmic microwave background temperature and polarization data, Baryon Acoustic Oscillations and Pantheon type Ia Supernovae data. Our main result is that a non-flat Universe cannot be discarded in light of the current astronomical data, because we find an indication for a closed Universe in most of the DE cosmologies explored in this work. On the other hand, forcing the Universe to be flat can significantly bias the constraints on the equation of state of the DE component and its dynamical nature.
