Now Physicists are analysing the dark matter temperature , mysterious substances that make up about a quarter of our universe.
We have little idea what dark matter is, and physicists will only find a piece of dark matter. However, we know that the gravity of the dark blobs of matter can change light from distant objects. The researchers used this distortion, known as a gravitational lens, to learn more about the properties of dark matter.
The standard dark matter model is “cold,” which means that particles move slowly compared to the speed of light Researcher said. This is also related to the mass of dark particles. The smaller the mass of the particle, the warmer and faster it moves. The cold (more massive) dark matter model adheres to very large standards, Fasnacht said, but does not work well on the scale of individual galaxies. This results in other models including “warm” dark matter with lighter and faster-moving particles. Dark matter “hot” with particles moving close to the speed of light is removed from observation.
The researchers used a gravitational lens to limit heat and hence the mass of dark matter. They measured the brightness of seven quasars that depend on gravity to look for changes caused by additional dark matter disturbance, and used this result to measure the size of this dark matter lens. If dark matter particles move lighter, warmer and faster, they will not form structures of a certain size.
The results set a lower mass limit for potential dark matter particles, but did not rule out cold dark matter, he said. The team results represent a significant improvement compared to the previous analysis from 2002 and can be compared with the latest UCLA team results. Now researchers hope to continue adding objects in objects to the study to improve statistical accuracy. We need to look at about 50 digits to narrow down how warm dark matter is, say researchers.