Home » If dark matter is composed of axions, axion stars will reveal the existence of dark matter | Science and Technology News | LINE TODAY

If dark matter is composed of axions, axion stars will reveal the existence of dark matter | Science and Technology News | LINE TODAY

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If dark matter is composed of axions, axion stars will reveal the existence of dark matter | Science and Technology News | LINE TODAY

“Scientists propose that ‘axion stars’ may unlock the secrets of dark matter”

Recent research suggests that highly unstable “axion stars” formed after the big bang could hold the key to unraveling the mysteries of dark matter, a substance that makes up about 85% of the matter in the universe.

Axions are hypothetical particles first theorized in 1977 that are believed to be the main components of dark matter. Due to their extremely low mass, axions must be densely packed in specific areas to explain the missing mass of galaxies. When present in large numbers, axions can begin to act in unison, forming “sub-stars” that have the potential to heat the universe like a supernova or a regular star.

However, the lifespan of axion stars is shorter than the dark matter halo surrounding galaxies. Scientists at King’s College London have proposed a new method to track the existence of axions and determine if they are the elementary particles that constitute most of dark matter in the universe.

The team suggests that axion stars would become unstable after surpassing a certain mass threshold, leading to explosions that release electromagnetic radiation and photons. By searching for changes in the cosmic microwave background caused by these explosions, researchers may indirectly measure the presence of axion-like dark matter in the universe.

This new study, published in the journal Physical Review D, offers a potential avenue for understanding the elusive nature of dark matter and could provide valuable insights into the structure and evolution of the universe. By tracking the remnants of axion star explosions, scientists hope to shed light on this enigmatic cosmic substance that continues to elude detection.

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