“Schematic representation of rotating disc galaxies in the distant Universe and the present day. Observations with ESO’s Very Large Telescope suggest that such massive star-forming disc galaxies in the early Universe were less influenced by dark matter. As a result the outer parts of distant galaxies rotate more slowly than comparable regions of galaxies in the local Universe. Their rotations curves, rather than being flat, drop with increasing radius.” (SciTechDaily, ESO Observations Show Dark Matter Less Influential in Galaxies in Early Universe)
That means that. Dark and visible matter were once the same. But then their energy levels turned different. And they lost their ability to interact in any way other than through gravity.
In the beginning of time. Just after the Big Bang. There was no dark matter. And no dark energy. All matter and energy were the same. In some models, it was the distance from the Big Bang. Or. Differences in energy levels in the young universe caused. That visible and dark matter started to separate.
Visible matter. And. Dark matter separated. And visible energy separated from dark energy. When the universe started to expand. And. Matter started to form. There formed pockets. When. Matter started to form galaxies. There formed cosmic low-energy areas. Today, those areas are called great voids. Those voids separate galactic superclusters. From. Each other. When matter went into those voids. It. Lost its energy. That formed matter; that energy was different from normal matter. This means that. Dark matter could be matter. That energy level is different than visible matter. In this case, we must think oppositely.
We should think that dark matter is normal matter. And visible matter is very rare. Because. Only 4,9% of the universe is visible. 26.8% of matter is dark. And 68,3% of energy is dark. In. Some models. Dark energy is a remnant of particles. Existed in the young universe. Those particles vanished. Or they bound into other particles.
Observations suggest dark matter was less influential in the early universe. This suggests. A difference between dark matter and visible matter was lower. Than. In the modern universe. This causes a thought. That maybe the energy level makes visible matter visible. And dark matter is dark. Maybe the energy levels of dark and visible matter are different.
And that causes an interesting idea. It’s possible. That matter can turn into dark matter when it travels into a cosmic void. Or maybe matter turns dark. When. It travels out from a galaxy. When. A photon hits visible matter. That particle takes its energy into its quantum field.
Then it starts to deliver that extra energy. As. Electromagnetic radiation. When a particle travels into a lower-energy area. It. Starts to deliver energy out of it. In this model, dark energy. That. Hypothetical WIMPs (Weakly Interacting Massive Particles) deliver. The idea is that. When. A particle travels out of a galaxy. It delivers energy. And its size expands. Because. Its environment’s quantum pressure cannot push against it. When. Particle travels. Out. Of the galactic cluster. It delivers energy again.
This means: Energy that those very low-energy particles send. It might not be very strong. But there are lots of objects. In that model, dark matter is matter. That energy level is lower than it is in galaxies. And in that model, dark matter is originally visible matter. Particles send low-energy photons when they travel out of the galaxy. And. Then those particles send photons again when they travel out of galactic clusters’ halos. Their energy level is lower.
Than. The energy level in galaxies is. In this model, visible matter can turn into dark matter. In. This model. The dark matter. Is like an elementary version. Of. A Bose-Einstein condensate. In that model, elementary particles can expand to a very large size.
Dark matter doesn’t resonate. That is. The thing. That makes dark matter invisible. This means that two things can make hypothetical WIMPs (Weakly Interacting Massive Particles) invisible. There is a possibility. WIMPs are elementary versions of the Bose-Einstein condensate. This means. Those particles are heavily expanded versions of particles that we know.
Another version of that model is this. The WIMP spins very fast. And it stores and focuses energy in a new way. This means that the hypothetical WIMP particle transforms the wavelength of the wave that hits it. And. If the dark matter particle's size differs from regular matter. That means they cannot resonate. In this theory, the dark matter particles are so-called fuzzy. They can receive energy. But they deliver it very slowly.
That means they emit radiation. But that radiation is too weak. We cannot see it through the galactic halo. The densest point of dark matter is near the galactic center. But most of the dark matter is in the galaxy’s outer edge. And. The dark matter halo surrounds the entire galaxy. Most of the dark matter is in the dark matter halo. That raises an interesting question. That question is. Could dark matter form when regular matter, like electrons, protons, and neutrons, escapes from the galaxy?
The idea is this. When. Those particles leave the galaxy. They will enter an area where the energy level is very low. That means quantum fields don’t press those particles. Those particles will start to expand. So could that expansion turn particles into “ghosts”? Positions. Where the dark matter is located. Supports that model. This means that when particles escape from galaxy clusters, they lose energy once more. And that expands their size. So, in this model, dark matter has a lower energy level than galaxies. And galaxy clusters. If we continue this chain.
We can think that. Outside galactic clusters is a very large mass of matter. Whose energy level is so low that we cannot see it. If. That is the dark matter. We cannot create instruments that see that matter. That matter cannot emit radiation that we can see. The reason for that is this. That matter has a lower temperature than the minimum in a galaxy. So we cannot create a sensor. That temperature is low enough. That. We can see that dark matter.
So, what makes dark matter special? Why can't we see dark matter in a galaxy? It could be that. When. Galactic gravity pulls that matter. In. The galaxy. Dark matter behaves like a plastic bag or a half-empty balloon. Gravity stretches those particles. And that causes an effect: it doesn’t interact with the environment. Or other interactions happen so weakly. That other radiation covers it. And that’s why we cannot detect that matter.
https://interestingengineering.com/space/26-7-billion-years-old-universe
https://science.nasa.gov/universe/overview/building-blocks/
https://scitechdaily.com/eso-observations-show-dark-matter-less-influential-in-galaxies-in-early-universe/
https://www.uottawa.ca/faculty-science/news-all/theory-predicting-older-universe-without-dark-matter-dark-energy-passes-key-cosmological
https://en.wikipedia.org/wiki/Dark_energy
https://en.wikipedia.org/wiki/Dark_matter
https://en.wikipedia.org/wiki/Weakly_interacting_massive_particle
