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The previous theory says there are results, see if there is no! New research confirms that there is no “dark matter” in galaxies 250 million light-years away from Earth | Technology | 新头壳 Newtalk

Schematic diagram of the galaxy.Picture: Reposted from NASA

According to the latest research, a galaxy about 250 million light-years away from the Earth, which is about the size of the Milky Way, cannot find any “dark matter”. The mainstream cosmic cognitive model theory believes that dark matter must exist in the AGC 114905 galaxy to maintain the shape of the galaxy. And researcher Pina said: “40 hours of careful observations have provided more conclusive evidence that the galaxy has no dark matter. This is an expected result and confirms that the previous measurements are correct.” The theory and observations are very different. .

The mainstream universe model believes that dark matter is an important component of each galaxy. However, in a study published in The Astrophysical Journal Letters in 2019, researchers proposed that no trace of dark matter could be found in six galaxies. But this is very different from the mainstream cosmic cognitive model, so the researchers decided to collect more data for a more detailed analysis of each galaxy.

In this study published in Monthly Notices of the Royal Astronomical Society on December 14, 2021, the galaxy AGC 114905 was analyzed again, and there was still no trace of dark matter. This galaxy is 248 million light-years away from Earth and is located in the constellation Pisces. The galaxy AGC 114905 is classified as a “dwarf galaxy”, which means that it has a lower brightness. Although its spatial extent is about the same size as the Milky Way, the number of stars in it is only a few thousandths of the Milky Way, and the internal material distribution is very sparse.

Mainstream theories believe that other theories alone cannot explain the distribution of various structures of all stars and galaxies in the universe. It is explained by introducing a concept of dark matter. This mainstream theoretical model of the universe estimates that dark matter accounts for as much as 85% of the total matter in the universe. Since it is not yet clear what particles are made of, scientists collectively refer to it as “dark matter.”

According to the dark matter theory, the sparsely distributed dwarf galaxies need dark matter to bring together the celestial bodies and various materials in the galaxy and maintain the shape of the galaxy. However, this study found that there was no evidence of dark matter in the dwarf galaxy AGC 114905. The study concluded that the observed data showed that the pattern of matter movement in the galaxy AGC 114905 was completely the result of normal matter interaction.

One of the main researchers, astronomer Pavel Mancera Piña of the University of Groningen in the Netherlands, said: “When we discovered that there were no dark matter in six galaxies, they told us Test it again” Pina refers to the reaction of colleagues after their research results were published in 2019.

Pina said: “After 40 hours of careful observation, it provides more conclusive evidence for the claim that there is no dark matter in this galaxy. This is of course the expected result and confirms that our previous measurements are correct.”

However, the theory is that there must be dark matter in the AGC 114905 galaxy, but the measurement results show that there is no dark matter there. In other words, there is a big difference between theory and observation.

According to the dark matter theory, the sparsely distributed dwarf galaxies need dark matter to bring together the celestial bodies and various materials in the galaxy and maintain the shape of the galaxy.But this study found that there was no evidence of dark matter in the dwarf galaxy AGC 114905.

AGC 114905 is classified as a “dwarf galaxy”, which means that it has a lower brightness. Although its spatial extent is about the same size as the Milky Way, the number of stars in it is only a few thousandths of the Milky Way, and the internal material distribution is very sparse.

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