What if we were looking for dark matter asteroids?
Despite the many efforts that have been made to highlight it for decades, Dark matter is still far from us…
This hypothetical form of matter, which would represent approximately 27% of the total energy density in the universe, is not sensitive to the electromagnetic force. So it is essentially impossible to notice it, and the only way to detect its presence would be by watching its potential gravitational effects. But in a study published by the magazine Physical Review Letters Researchers from the SLAC National Accelerator Laboratory in Stanford, USA, and the University of Paris-Saclay have proposed a fascinating new way to detect it. “Most experiments look for dark matter made up of discrete particles. However, it has long been known that it may have formed large asteroid-sized clusters in the early universe, Tracks Kevin Zhou, of Stanford University. Then we wanted to model what effect a collision between such an object and a star would have. ” These calculations revealed that very fast and powerful shock waves will be generated by it, and they will be manifested by the appearance, on the surface of the star, especially bright hot spots in the ultraviolet range. The signature signature for such an event is so well designed, it remains to be seen! “For this, we have to observe for long periods a very large number of stars in the ultraviolet”, Kevin Chu admits. Researchers believe that a mission may be within reach of the Ultrasat satellite, which is due to launch in a few years. Follow…
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