参数化哈勃函数而非暗能量：多种可能性
Parametrizing the Hubble function instead of dark energy: Many possibilities
AI总结：
本文提出一种不参数化暗成分的简单哈勃函数参数化方法，涵盖多种宇宙学模型，利用最新天文观测数据约束后发现与标准$Λ$CDM模型存在轻微偏离，且模型热力学一致并表现良好。
摘要：
在本文中，我们提出了一种非常简单的哈勃函数参数化方法，而不对宇宙的暗成分进行参数化。该参数化的一个新颖之处在于，它可能包含多种宇宙学模型，例如暗能量（非相互作用和相互作用流体）、修正引力、宇宙学物质创生以及其他已知情景。该模型受限于最新的天文探测数据，包括哈勃参数测量、三个不同版本的Ia型超新星（Pantheon+、DESY5、Union3）以及来自斯隆数字巡天和暗能量光谱仪器第1次和第2次数据发布的重子声学振荡。我们的结果表明，对于大多数组合数据集，与标准$Λ$CDM宇宙学模型存在轻微偏离。我们还发现，该模型在热力学上是一致的，并且在模型比较测试中表现良好。
英文摘要：
In the present article, we propose a very simple parametrization of the Hubble function without parametrizing the dark components of the Universe. One of the novelties of the parametrization is that it may include a wide variety of the cosmological models, such as dark energy (both noninteracting and interacting fluids), modified gravity, cosmological matter creation and other known scenarios. The model is constrained with the latest astronomical probes from Hubble parameter measurements, three distinct versions of Type Ia Supernovae (Pantheon+, DESY5, Union3) and baryon acoustic oscillations from Sloan Digital Sky Survey and Dark Energy Spectroscopic Instrument data releases 1 and 2. Our results suggest a mild deviation from the standard $Λ$CDM cosmological model for most of the combined datasets. We also find that our model is thermodynamically consistent and performs well in the model comparison tests.
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。
