The oscillatory universe, phantom crossing and the Hubble tension

被引:9
|
作者
Sharma, Mohit K. [1 ]
Pacif, Shibesh Kumar Jas [1 ]
Yergaliyeva, Gulmira [2 ]
Yesmakhanova, Kuralay [3 ]
机构
[1] SGT Univ, Ctr Cosmol & Sci Popularizat CCSP, Gurugram 122505, Haryana, India
[2] LN Gumilyov Eurasian Natl Univ, Dept Gen & Theoret Phys, Nur Sultan 010008, Kazakhstan
[3] Ratbay Myrzakulov Eurasian Int Ctr Theoret Phys, Nur Sultan 010009, Kazakhstan
关键词
Hubble tension; QSSC; Dark energy; STEADY-STATE COSMOLOGY; SPACE-TELESCOPE; SUPERNOVAE; DYNAMICS; LAMBDA; ORIGIN; IA;
D O I
10.1016/j.aop.2023.169345
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We investigate the validity of cosmological models with an oscil-lating scale factor in relation to late-time cosmological observa-tions. We show that these models not only meet the required late time observational constraints, but can also alleviate the Hubble tension. As a generic feature of the model, the Hubble parameter increases near the current epoch due to its cyclical nature exhibiting the phantom nature allowing to address the said issue related to late time acceleration.& COPY; 2023 Elsevier Inc. All rights reserved.
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页数:11
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