Emergent Universe from A Composition of Matter, Exotic Matter and Dark Energy

TL;DR

This paper investigates a flat Emergent Universe model composed of exotic matter, dust, and dark energy, testing its viability against recent observational data and constraining its parameters.

Contribution

It introduces a specific flat Emergent Universe model with a composition of exotic matter, dust, and dark energy, and tests its consistency with current observational data.

Findings

Model parameters are consistent with recent Hubble and BAO data.

A composition of exotic matter, dust, and dark energy can produce an Emergent Universe.

Evolution of cosmological parameters aligns with observational constraints.

Abstract

A specific class of flat Emergent Universe (EU) is considered and its viability is tested in view of the recent observations. Model parameters are constrained from Stern data for Hubble Parameter and Redshift ($H(z)$ vs. $z$) and from a model independent measurement of BAO peak parameter. It is noted that a composition of Exotic matter, dust and dark energy, capable of producing an EU, can not be ruled out with present data. Evolution of other relevant cosmological parameters, viz. density parameter ($\Omega$), effective equation of state (EOS) parameter ($\omega_{eff}$) are also shown.