In a examine revealed within the journal Classical and Quantum Gravity, Dr. Richard Lieu, a physics professor at The College of Alabama in Huntsville (UAH), which is part of The College of Alabama System, means that the universe was shaped on the steps of a number of singularities somewhat than the Large Bang alone to clarify the universe’s growth.
The brand new mannequin doesn’t require darkish matter or darkish power to clarify the growth of the cosmos or the formation of constructions like galaxies.
The researcher’s work expands on an earlier mannequin that hypothesized gravity might persist with out mass.
This new paper proposes an improved model of the sooner mannequin, which can be radically completely different. The brand new mannequin can account for each construction formation and stability, and the important thing observational properties of the growth of the universe at massive, by enlisting density singularities in time that uniformly have an effect on all house to interchange standard darkish matter and darkish power.
Dr. Richard Lieu, Professor, The College of Alabama in Huntsville
Dr. Lieu added, “Sir Fred Hoyle opposed Large Bang cosmology and postulated a ‘regular state’ mannequin of the universe wherein matter and power had been continuously being created because the universe expands. However that speculation violates the regulation of mass-energy conservation. Within the present principle, the conjecture is for matter and power to look and disappear in sudden bursts and, curiously sufficient, there isn’t a violation of conservation legal guidelines.”
He acknowledged, “These singularities are unobservable as a result of they happen hardly ever in time and are unresolvedly quick, and that could possibly be the rationale why darkish matter and darkish power haven’t been discovered. The origin of those temporal singularities is unknown – secure to say that the identical is true of the second of the Large Bang itself.”
These singularities in house, as an alternative of darkish matter, generate “adverse stress,” a sort of power density much like darkish power that has a repulsive gravitational influence, forcing the universe to increase at an accelerated charge.
“An instance is the adverse stress exerted by a magnetic area alongside a area line. Einstein additionally postulated adverse stress in his 1917 paper on the Cosmological Fixed. When constructive mass-energy density is mixed with adverse stress, there are some restrictions which make sure the mass-energy density stays constructive with respect to any uniformly transferring observer, so the adverse density assumption is prevented within the new mannequin,” Dr. Lieu famous.
The title of Lieu’s newest examine, Are darkish matter and darkish power omnipresent?, suggests the researcher’s final conclusions.
He acknowledged, “They don’t seem to be omnipresent – that means, not current always. They solely seem briefly cases throughout which the matter and power do fill your entire universe uniformly, aside from random spatial density variations which develop to kind certain constructions like galaxies. In between which they aren’t to be discovered wherever. The one distinction between this work and the usual mannequin is that the temporal singularity occurred solely as soon as within the latter, however greater than as soon as within the former.”
Wanting forward, Lieu believes the following step in confirming his mannequin of the universe might be observations made with earthbound devices somewhat than one thing just like the James Webb House Telescope.
The researcher famous, “One of the best ways to search for the proposed impact is definitely to make use of a big ground-based telescope – just like the Keck Observatory [Waimea, Hawaii], or the Isaac Newton Group of Telescopes in La Palma, Spain – to carry out deep area observations, the information of which might be ‘sliced’ in line with redshift. Given enough redshift (or, equivalently, time) decision effected by the redshift slicing, one may simply discover that the Hubble diagram reveals jumps within the redshift distance relation, which might be very revealing.”
Journal Reference:
Lieu, R. (2025) Are darkish matter and darkish power omnipresent? Classical and Quantum Gravity. doi.org/10.1088/1361-6382/adbed1
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