Fermi Degenerate Antineutrino Star Model of Dark Energy

Figure 4

(a) Hubble diagram of 580 SNe Ia (circles) from the Union catalog [48] with comparable fits by the ΛCDM model (dashed line) and the ATLAS model (solid line). (b) Hubble diagram relative to the empty universe model for a better comparison. The difference between the two models at z < 0.04 is created by the assumption of an initial average expansion velocity of galaxies (), which could qualitatively explain the 4.4σ Hubble tension [25, 26]. Note that the central density ρ₀ is quantitatively comparable to the dark energy density of the ΛCDM model (ρ_Λ≈6 × 10⁻³⁰ g/cm³ [5]).

(a)

(b)