Scientists have discovered the hidden power of dark matter that slows down the growth of the universe
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- Scientists have discovered the hidden power of dark matter that slows down the growth of the universe
Scientists have discovered signs of a hidden "dark force" that can slow down the growth of large-scale structures in the universe. This was reported on June 23 by the Science X news portal.
According to standard models, dark matter particles interact with the outside world and with each other only through gravity. However, an international team of researchers has studied theoretical scenarios in which an additional force acts between these particles. Scientists have found that, contrary to intuitive expectations, the presence of gravity does not accelerate, but suppresses the formation of cosmic structures.
Zachary Weiner, lead author of the study and researcher at the Institute of Theoretical Physics
What we actually know about dark matter has so far only been established due to its gravitational effects. Perimeter" and co-author of the study. "This leaves open the possibility that dark matter may have additional interactions hidden from ordinary matter.
As the authors of the study explained, the additional force really makes dark matter clump more efficiently. However, at the same time, a side process is triggered in the system: in the studied model, dark matter particles actually become lighter over time. As a result, the general gravitational effect of matter on the cosmic microwave background weakens, which leads to a slowdown in the growth of structures.
Astrophysicists believe that these findings will help explain the discrepancies in current cosmological data. Recent measurements of the expansion of the universe and the density of the distribution of galaxies do not always match the predictions of the standard model.
In further research, the scientists plan to apply the data obtained to analyze the results of new observatories, including the dark energy spectroscopic instrument, in order to more accurately determine the hidden properties of dark matter.
Science Daily magazine reported the discovery of a possible trace of dark matter in gravitational waves. According to the publication, thanks to gravitational waves, scientists have identified an anomaly that may indicate the interaction of massive objects with an invisible substance.
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