Preprint Article Version 1 This version is not peer-reviewed

The Quasi Steady State Cosmology in a Radiation Dominated Phase

Version 1 : Received: 14 November 2018 / Approved: 19 November 2018 / Online: 19 November 2018 (16:48:10 CET)

How to cite: Bali, R. The Quasi Steady State Cosmology in a Radiation Dominated Phase. Preprints 2018, 2018110473 (doi: 10.20944/preprints201811.0473.v1). Bali, R. The Quasi Steady State Cosmology in a Radiation Dominated Phase. Preprints 2018, 2018110473 (doi: 10.20944/preprints201811.0473.v1).

Abstract

Analytical solutions for radiation dominated phase of Quasi Steady State Cosmology in Friedmann-Robertson-Walkar models are obtained. We find that matter density is positive in all the cases (k = 0,-1,1). The nature of Hubble parameter (H) in [0,2] is discussed. The deceleration parameter (q) is marginally less than zero indicating accelerating universe. The scale factor (S) is graphically shown with time. The model represents oscillating universe between the above mentioned limits. Because of bounce in QSSC, the maximum density phase is still matter dominated. The models represent singularity free model. We also find that the models have event horizon i.e. no observer beyond the proper distance rH can communicate each other in FRW mdels for radiation dominated phase in the frame work of QSSC. The FRW models are special classes of Bianchi type I, V, IX space-times with zero, negative and positive curvatures respectively. Initially i.e. at  = 0, the model represents steady model. We have tried to show how a good fit can be obtained to the observations in the framework of QSSC during radiation dominated phase.

Subject Areas

Quasi Steady State Cosmology, Radiation Phase

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