2016/10/31 by John, Moncy V.
#Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc)
paper · doi:10.48550/arxiv.1610.09885
In the context of the recent synchronicity problem in ΛCDM cosmology, coasting models such as the classic Milne model and the Rh=ct model have attracted much attention. Also, a very recent analysis of supernovae Ia data is reported to favour models with constant expansion rates. We point out that the nonempty Rh=ct model has some known antecedents in the literature. Some of these are published even before the discovery of the accelerated expansion and were shown to have none of the cosmological problems and also that H0t0=1 and Ωm/Ωdark energy = some constant of the order of unity. In this paper, we also derive such a model by a complex extension of scale factor in the Milne model.