Can extended Chaplygin gas source a Hubble tension resolved emergent universe ? (original) (raw)

2023, arXiv (Cornell University)

Unifying Dark Matter and Dark Energy in Chaplygin Gas Cosmology: Confronting the Model with Observational Data

2020

In this paper we study the accelerating expansion of the Universe by unifying dark matter and dark energy with an exotic fluid the so-called Chaplygin gas. We consider the cosmological background expansion of a universe model filled with a radiation-baryonic matterChaplygin gas fluid system and show that such a model can solve the dark matter and dark energy problems, at least at the level of the background expansion. We present the numerical results of the deceleration parameter and luminosity distance, and show that they correlate well with observational data.

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