Self-Interacting Dark Matter: Mysterious self-interaction of dark matter in nearby galaxy

Scientists have got a clue of the self-interacting matter presence in the nearby galaxy named Crater II, this is a hypothetical dark matter which particles are speculated to do interaction via unknown force named hitherto. This galaxy is located alongside of our own galaxy around 380,000 light-years away from Earth. This discovery could contribute to 90 years of research on dark matter. Our universe mass 80% is of the dark matter this is a mysterious substance that make most of our universe. According to the Hai-Bo Yu, who is a professor of physics and astronomy at the University of California, Riverside, "When we started this project, we roughly knew how SIDM would work, but had no idea how well it would work in explaining the observations of Crater II," in an interaction with space.com. Adding further in his statement he said, "Our computer simulations of Crater II analogs show that the agreement between [self-interacting dark matter] predictions and Crater II observations is surprisingly good, and the required strength of the dark matter self-interaction is larger than we initially anticipated." During the early phases of the research on dark matter, it was considered cold collision less material. Additionally the interaction of the matter with itself was considered to be happening through gravity but the later research revealed new findings the interaction happens hitherto which an unknown force even more than gravity itself. If the observations of Crater II are confirmed, it could revolutionize our understanding of dark matter, indicating that it possesses entirely new properties. This potential self-interaction of dark matter might lead to significant breakthroughs in our knowledge, possibly revealing new types of dark matter particles or forces that are currently beyond our theoretical framework.

Khushi Thakur

June 29, 2024 / 16:24 IST

Dark Matter (Representative Image - Canva)

Scientists have a clue about the self-interacting matter present in the nearby galaxy named Crater II, this is a hypothetical dark matter in which particles are speculated to interact via an unknown force named hitherto.

This galaxy is located alongside of our own galaxy around 380,000 light-years away from Earth. This discovery could contribute to 90 years of research on dark matter.

Our universe's mass 80% is of dark matter this is a mysterious substance that makes up most of our universe.

According to Hai-Bo Yu, who is a professor of physics and astronomy at the University of California, Riverside, "When we started this project, we roughly knew how SIDM would work, but had no idea how well it would work in explaining the observations of Crater II," in an interaction with space.com.

Adding further in his statement he said, "Our computer simulations of Crater II analogues show that the agreement between [self-interacting dark matter] predictions and Crater II observations is surprisingly good, and the required strength of the dark matter self-interaction is larger than we initially anticipated."