Parameter-free prediction of the asymptotic acceleration scale confirmed by weak lensing

ABSTRACT The de Sitter transition scale $a_{\mathrm{ d}\mathrm{ S}}=cH$ to anomalous galaxy dynamics was previously derived from first principles based on the background Hubble expansion H and the velocity of light c. It introduces a $C^0$-transition across $a_{\mathrm{ d}\mathrm{ S}}$, which is in tension with predictions of $\Lambda$CDM galaxy models at a significance of $6\sigma$. Tracing late-time cosmology, it predicted the deep-asymptotic acceleration scale $a_0^{\mathrm{ th}}\simeq 1.66\times 10^{-8}{\rm cm\, s^{-2}}$ without adjustable parameters based on H and the deceleration parameter q. A recent weak-lensing determination of $a_0^{\mathrm{ WL}} = 1.63_{-0.20}^{+0.23}\times 10^{-8}{\rm cm\, s}^{-2}$…

• NR
  Neurosciences Research Foundation

  Award: RS-2024-00334550