Can the late dark energy parameterization reconcile the Hubble tension?

被引:0
作者
Zhang, Ming-Jian [1 ]
Chen, Li [1 ]
Yang, Maoyou [1 ]
Wang, Junmei [1 ]
机构
[1] Qilu Univ Technol Shandong Acad Sci, Int Sch Optoelect Engn, Jinan 250353, Peoples R China
关键词
dark energy; Hubble tension; CMB; CONSTANT; MODEL; H-0; CMB;
D O I
10.1088/1674-1137/ad3f95
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
In this study, we constructed ten dark energy models to test whether they can reconcile the Hubble tension and how much it is affected by parameterization. To establish a fair test, the models are diverse, encompassing fractional, logarithmic, exponential, and inverse exponential forms as well as several non-parameterized models. The dataset we used includes the NPIPE pipeline of cosmic microwave background (CMB) power-spectrum data from Planck2020, Pantheon+ samples from Supernovae Type Ia, and baryon acoustic oscillations. The MCMC calculations imply dark energy transferring from w < -1 to w > -1 for the four parameterized dark energy models. However, these models cannot adequately reconcile the Hubble tension. Notably, we found that phantom-like dark energy with w < -1 can achieve the greatest reduction in the Hubble tension to 0.1808 sigma . However, AIC analysis indicates that this alleviation is at the cost of high AIC. We also investigated the effect of constructions on the derivative of the equation of state , cosmic density parameter, CMB power spectrum C-TT , and matter spectra P(k). We also found that the Hubble tension may be related to the reionization process.
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页数:9
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