Saturday , July 31 2021

The new discovery can be a "cannon" in understanding the dark matter

Dark matter

Experts hope a new study of how dark matter moves through galaxies can ultimately lead to an understanding of the mysterious substance.

"This study can be evidence of" smoking from a gun "that brings us closer to understanding what is dark matter," said Matthew Walker, professor at Carnegie Mellon University, in a press release. "Our conclusion that it can warm up and move, helps to motivate the quest for a particle of the dark".

Dwarf galaxies

In the new paper, published in the journal Monthly notifications of the Royal Astronomical Society, Walker and his colleagues at the University of Surrey and ETH Zurich analyzed data on the distribution of dark matter – a mysterious and seemingly invisible substance believed to constitute the vast majority of mass in the universe – in 16 dwarf galaxies.

"We found a really remarkable relationship between the amount of dark matter in the centers of these small dwarfs and the amount of star they experienced throughout their lives," said coauthor Justin Read from the University of Surrey. "The dark matter in the centers of dwarf stars that form the stars appear to be" warmed up and pushed. "

Smoking gun

Although it sounds esoteric, the report's authors say the finding is an exciting new term that can lead to a better understanding of dark matter. Future models that explain the mysterious substance, they say, will need to explain why the new formation of stars pushes it to the gaps of the galaxies, narrowing the field for new theories.

It may even lead to new techniques, said Walker, that scientists could identify dark matter particles – the holy grail of experimental physics.

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