English

A new coupled three-form dark energy model and implications for the $H_0$ tension

Cosmology and Nongalactic Astrophysics 2022-05-31 v1

Abstract

We propose a new coupled three-form dark energy model to relieve the Hubble tension in this paper. Firstly, by performing a dynamical analysis with the coupled three-form dark energy model, we obtain four fixed points, including a saddle point representing a radiation dominated Universe, a saddle point representing a matter dominated Universe, and two attractors representing two saturated de Sitter Universes. Secondly, by confronting the coupled three-form dark energy model and the Λ\Lambda cold dark matter model (the Λ\LambdaCDM model) with cosmic microwave background (CMB), baryonic acoustic oscillations (BAO), Type Ia supernovae (SN Ia) observations, we obtain H0=67.80.6+0.7H_0= 67.8_{-0.6}^{+0.7}(1σ1\sigma level) km/s/Mpc for the coupled three-form dark energy model and H0=67.60.5+0.5H_0=67.6_{-0.5}^{+0.5}(1σ1\sigma level) km/s/Mpc for the Λ\LambdaCDM model, the former is in strong tension with the latest local measured H0H_0 value at 4.3σ4.3\sigma confidence level, while the latter is in strong tension with the latest local measured H0H_0 value at 5.1σ5.1\sigma level.

Keywords

Cite

@article{arxiv.2205.14928,
  title  = {A new coupled three-form dark energy model and implications for the $H_0$ tension},
  author = {Yan-Hong Yao and Xin-He Meng},
  journal= {arXiv preprint arXiv:2205.14928},
  year   = {2022}
}

Comments

16 pages, 1 figure, 3 table. arXiv admin note: substantial text overlap with arXiv:2011.09160