Dark matter speed has far-outstretched consequences for modern astrophysical research, but due to its fundamental property it has evaded researchers for years. An international team came with first clue for the solution of mystery, displaying some oldest stars lying the galaxy.
The old stars acting as speedometers for the invisible dark matter helps in measuring its speed distribution near Earth. The Assistant Professor at Princeton University, Mariangela Listani have nothing concrete on this matter because dark matter itself cannot be seen or emitting light to any observable degree as it is just invisible.
For better understanding and determination of stars behaving like invisible and undetectable dark matter particles, the team kept it under computer simulation using super computers to replicate the physics of the Milky Way galaxy, including dark matter.
In their hypothesis, they described about the subset of stars matching the movements of dark matter and all the authors and researchers used the data of Eris and compared to the various properties of dark matter with the properties of different subset of stars.
The idea they were working on went pretty darn well as well as they came to know about the curve representing dark matter matched up beautifully with the tars that have the least heavy material setting up one of the best example. Researchers were well-known of the fact of metallicity serving as star’s age proxy because of same initial conditions making it pretty sensible.
Team have been observing dark matter directly since 2009 and they did a lot of practical experiments. They compared direct detection with the game if billiards. As when dark matter scatters off a nucleus in an atom, the collision is similar to two billiard balls hitting each other but things get really hard if dark matter particle is much less massive than the nucleus, then the movement of nucleus is not possible.
Constraining the aped of dark matter is very important because slow and light ill have less kinetic energy and that will not able to move nuclear billiards balls and vice versa. So, proper attentions required by scientist as well as in depth particle interaction, which is still unobserved. They have now changes the script to understand why direct detection is not been able to detect anything.
Simulation of Eris data and other collected data will be done by researchers as this concept is more applicable theoretically but not practically.