Our universe has no dark matter according to new research

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Editors have highlighted the following attributes while ensuring the content’s credibility:Angular diameter distance as a function of redshift in CCC+TL and ΛCDM models.
Credit: The Astrophysical Journal (2024).
DOI: 10.3847/1538-4357/ad1bc6The current theoretical model for the composition of the universe is that it’s made of normal matter, dark energy and dark matter.
A new University of Ottawa study challenges this.
A study, published today in The Astrophysical Journal, challenges the current model of the universe by showing that, in fact, it has no room for dark matter.
In cosmology, the term “dark matter” describes all that appears not to interact with light or the electromagnetic field, or that can only be explained through gravitational force.
We can’t see it, nor do we know what it’s made of, but it helps us understand how galaxies, planets and stars behave.
Rajendra Gupta, a physics professor at the Faculty of Science, used a combination of the covarying coupling constants (CCC) and “tired light” (TL) theories (the CCC+TL model) to reach this conclusion.
This model combines two ideas—about how the forces of nature decrease over cosmic time and about light losing energy when it travels a long distance.
It’s been tested and has been shown to match up with several observations, such as about how galaxies are spread out and how light from the early universe has evolved.
This discovery challenges the prevailing understanding of the universe, which suggests that roughly 27% of it is composed of dark matter and less than 5% of ordinary matter, remaining being the dark energy.
Challenging the need for dark matter in the universe”The study’s findings confirm that our previous work (“JWST early universe observations and ΛCDM cosmology”) about the age of the universe being 26.7 billion years has allowed us to discover that the universe does not require dark matter to exist,” explains Gupta.
“In standard cosmology, the accelerated expansion of the universe is said to be caused by dark energy but is in fact due to the weakening forces of nature as it expands, not due to dark energy.”
“Redshifts” refer to when light is shifted toward the red part of the spectrum.
The researcher analyzed data from recent papers on the distribution of galaxies at low redshifts and the angular size of the sound horizon in the literature at high redshift.
“There are several papers that question the existence of dark matter, but mine is the first one, to my knowledge, that eliminates its cosmological existence while being consistent with key cosmological observations that we have had time to confirm,” says Gupta.
By challenging the need for dark matter in the universe and providing evidence for a new cosmological model, this study opens up new avenues for exploring the fundamental properties of the universe.
More information: Rajendra P. Gupta, Testing CCC+TL Cosmology with Observed Baryon Acoustic Oscillation Features, The Astrophysical Journal (2024).
DOI: 10.3847/1538-4357/ad1bc6 Journal information: Astrophysical Journal

The following qualities have been highlighted by editors while maintaining the content’s credibility, in accordance with Science X’s editorial process and policies:.

Relationship between angular diameter distance and redshift in the CCC+TL and ΓCDM models. The Astrophysical Journal (2024) is credited. 1538-4357/ad1bc6; DOI: 10.3847.

The universe is thought to be composed of dark energy, dark matter, and normal matter, according to current theoretical models. This is contested by a recent study from the University of Ottawa.

A study demonstrating that dark matter is actually not allowed in the current model of the universe was published today in The Astrophysical Journal, challenging the status quo.

All that seems to interact neither with light nor the electromagnetic field, or that can be explained solely by gravitational force, is referred to as “dark matter” in cosmology. Although it is invisible to us and its composition is unknown, it provides insight into the behavior of galaxies, planets, and stars.

The CCC+TL model, developed by Faculty of Science physics professor Rajendra Gupta, combines the theories of covarying coupling constants (CCC) and “tired light” (TL).

This model combines two concepts: long-distance light loss and the decrease of natural forces over cosmic time. Testing has shown that it agrees with a number of observations, including those regarding the distribution of galaxies and the evolution of light from the early universe.

This finding contradicts the current theory of the universe, which states that dark energy makes up the remaining roughly 27% of the universe and less than 5% of ordinary matter.

arguing against the universe’s need for dark matter.

“The results of the study validate our earlier work (“JWST early universe observations and ΛCDM cosmology”), which led us to conclude that the universe is 26 point7 billion years old and that dark matter is not necessary for the universe to exist,” says Gupta.

As the universe expands faster than expected, standard cosmology attributes this to dark energy, but in reality, the expansion is the result of nature’s waning forces. “.

The term “redshifts” describes the movement of light toward the red portion of the spectrum. In order to determine the angular size of the sound horizon at high redshifts, the researcher examined data from recent papers on the distribution of galaxies at low redshifts.

“My paper is the first that I am aware of that refutes the cosmological existence of dark matter while remaining consistent with significant cosmological observations that we have had time to verify,” states Gupta. “There are many studies that cast doubt on the existence of dark matter.”.

This work opens new avenues for investigating the fundamental properties of the universe by casting doubt on the necessity of dark matter in the universe and presenting evidence in favor of a new cosmological model.

Additional details: Rajendra P. Gupta, “Testing CCC+TL Cosmology with Observed Baryon Acoustic Oscillation Features,” The Astrophysical Journal (2024). Journal information: Astrophysical Journal; DOI: 10.3847/1538-4357/ad1bc6.

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