On the viability of some Emergent Universe models

TL;DR

This paper evaluates a class of flat Emergent Universe models against recent observational data, determining which matter-energy compositions are favored or ruled out, and constraining model parameters accordingly.

Contribution

It provides observational constraints on a specific class of Emergent Universe models with various matter-energy compositions.

Findings

Certain matter-energy compositions are favored by recent data.

Some compositions can be ruled out with confidence.

Model parameters are constrained within observationally permissible ranges.

Abstract

A particular class of flat Emergent Universe scenario is studied in light of recent observational data. Observationally permissible ranges of values are obtained for the model parameters. The class of model studied here can accommodate different composition of matter-energy as cosmic fluid. It is found that recent observations favour some compositions over others while some compositions can be ruled out with some level of confidence.