论文标题
黑暗能源和观察局限性的状态方程式
Modified Equations of State for Dark Energy and Observational Limitations
论文作者
论文摘要
具有可变和修改状态的黑暗能量方程的宇宙学模型面临着观察数据，包括IA型超新星，来自不同来源的Hubble参数数据$ H（Z）$以及宇宙微波背景辐射（CMB）的观察表现。我们考虑将$λ$ CDM，$ W $ CDM和CHEVALLIER- POLARSKI-LINDER（CPL）模型概括为具有非零曲率的型号，并比较其预测。详细研究了带有状态深色能源方程$ W = W_0+ W_1（1-A^2）/2 $的最成功模型。这些模型可能会减轻哈勃常数$ h_0 $张力的有趣，但是通过考虑的观察数据，它们在这个方向上取得了适度的成功。
Cosmological models with variable and modified equations of state for dark energy are confronted with observational data, including Type Ia supernovae, Hubble parameter data $H(z)$ from different sources, and observational manifestations of cosmic microwave background radiation (CMB). We consider scenarios generalizing the $Λ$CDM, $w$CDM, and Chevallier--Polarski--Linder (CPL) models with nonzero curvature and compare their predictions. The most successful model with the dark energy equation of state $w= w_0+ w_1(1-a^2)/2$ was studied in detail. These models are interesting in possibly alleviating the Hubble constant $H_0$ tension, but they achieved a modest success in this direction with the considered observational data.
