In a research printed 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 fashioned on the steps of a number of singularities fairly than the Large Bang alone to clarify the universe’s enlargement.
The brand new mannequin doesn’t require darkish matter or darkish vitality to clarify the enlargement 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 also be radically totally different. The brand new mannequin can account for each construction formation and stability, and the important thing observational properties of the enlargement 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 vitality.
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 by which matter and vitality have been consistently 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 vitality to look and disappear in sudden bursts and, curiously sufficient, there is no such thing as 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 may very well be the rationale why darkish matter and darkish vitality haven’t been discovered. The origin of those temporal singularities is unknown – protected to say that the identical is true of the second of the Large Bang itself.”
These singularities in house, as a substitute of darkish matter, generate “unfavorable stress,” a kind of vitality density much like darkish vitality that has a repulsive gravitational impression, forcing the universe to increase at an accelerated fee.
“An instance is the unfavorable stress exerted by a magnetic subject alongside a subject line. Einstein additionally postulated unfavorable stress in his 1917 paper on the Cosmological Fixed. When constructive mass-energy density is mixed with unfavorable stress, there are some restrictions which make sure the mass-energy density stays constructive with respect to any uniformly transferring observer, so the unfavorable density assumption is prevented within the new mannequin,” Dr. Lieu famous.
The title of Lieu’s newest research, Are darkish matter and darkish vitality omnipresent?, suggests the researcher’s final conclusions.
He acknowledged, “They aren’t omnipresent – that means, not current always. They solely seem in short cases throughout which the matter and vitality do fill your complete universe uniformly, aside from random spatial density variations which develop to type certain constructions like galaxies. In between which they don’t seem to be to be discovered anyplace. 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 subsequent step in confirming his mannequin of the universe will probably be observations made with earthbound devices fairly 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 subject observations, the info of which might be ‘sliced’ based on redshift. Given adequate redshift (or, equivalently, time) decision effected by the redshift slicing, one may simply discover that the Hubble diagram displays jumps within the redshift distance relation, which might be very revealing.”
Journal Reference:
Lieu, R. (2025) Are darkish matter and darkish vitality omnipresent? Classical and Quantum Gravity. doi.org/10.1088/1361-6382/adbed1
Supply: