An Ignored Assumption of $\Lambda$CDM Cosmology and An Old Question: Do We Live On The "Center" of The Universe?
Ding-fang Zeng, Yi-hong Gao

TL;DR
This paper challenges a key assumption in $ ext{Lambda}$CDM cosmology regarding the synchronous movement of the cosmological constant with matter, proposing a new mechanism involving pressures from random galaxy motions to explain cosmic acceleration.
Contribution
It introduces a novel analytical solution to Einstein's equations considering pressures from random galaxy motions, offering an alternative explanation for cosmic acceleration.
Findings
Proposes a new mechanism involving galaxy motions for cosmic acceleration
Provides an analytical Einstein solution incorporating galaxy motion pressures
Questions the assumption of $ ext{Lambda}$CDM regarding vacuum energy behavior
Abstract
We point out that CDM cosmology has an ignored assumption. That is, the component of the universe moves synchronously with ordinary matters on Hubble scales. If cosmological constant is vacuum energy, this assumption may be very difficult to be understood. We then propose a new mechanism which can explain the accelerating recession of super-novaes. That is, considering the pressures originating from the random moving (including Hubble recession) of galaxy clusters and galaxies. We provide an new analytical solution of Einstein equation which may describe a universe whose pressures originating from the random moving of galaxy clusters and galaxies are considered.
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Taxonomy
TopicsCosmology and Gravitation Theories
