We present a new redshift (RS) versus photon travel time (tS) test including 171 supernovae RS data points. We extended the Hubble diagram to a range ofz= 0,0141–8.1 in the hope that at high RSs, the fitting of the calculated RS/tSdiagrams to the observed RS data would, as predicted by different cosmological models, set constraints on alternative cosmological models. The Lambda cold dark matter (ΛCDM), the static universe model, and the case for a slowly expanding flat universe (SEU) are considered. We show that on the basis of the Hubble diagram test, the static and the slowly expanding models are favored.
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