The Cosmological Constant $\Lambda$, the Age of the Universe and Dark Matter: Clues from the Ly$\alpha$-Forest

Carsten van de Bruck, Wolfgang Priester

Evidence for a positive cosmological constant $\Lambda$, derived from the Ly$\alpha$-forest in high-resolution spectra of quasars, leads to a closed, low-density, $\Lambda$-dominated universe. The…