A new coupled three-form dark energy model and implications for the Η0 tension

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 Lambda cold dark matter model (the Lambda CDM model) with cosmic microwave background (CMB), baryonic acoustic oscillations (BAO), Type Ia supernovae (SN Ia) observations, we obtain H-0 = 67.8+0.7 -0.6(1 sigma level) km/s/Mpc for the coupled three-form dark energy model and H-0 = 67.6+0.5 -0.5(1 sigma level) km/s/Mpc for the Lambda CDM model, the former is in strong tension with the latest local measured H-0 value at 4.3 sigma confidence level, while the latter is in strong tension with the latest local measured H-0 value at 5.1 sigma level. (c) 2020 Elsevier B.V. All rights reserved.