A framework for the next generation of stationary cosmological models

  title={A framework for the next generation of stationary cosmological models},
  author={Yves‐Henri Sanejouand},
  journal={International Journal of Modern Physics D},
  • Y. Sanejouand
  • Published 16 May 2020
  • Physics
  • International Journal of Modern Physics D
According to a tired-light cosmological model where H(z) = H(0) (1 + z), the number density of galaxies has been nearly constant over the last 10 Gyr, at least, meaning that, as far as galaxies are concerned, the Universe has been stationary. On the other hand, an analysis of the luminosity distances of quasars and supernovae Ia shows that the Universe is far from being as transparent as assumed nowadays, the photon lifetime along the line-of-sight being one third of the Hubble time. The tired… 
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