Dark matter found with X-ray?
Two teams working on the search for dark matter have independently suggested the search could concentrate at a specific X-ray wavelength, following study of data collected by the XMM-Newton space observatory.
While it's not a proof of anything just yet,
the two groups – one from the Harvard-Smithsonian Centre for Astrophysics, the other from the Netherlands' Leiden Observatory – have spotted a spectrographic line in X-rays at 3.5 kiloelectron volts,
and this line is observed across 73 galaxy clusters.
Readers familiar with particle physics discoveries such as the search for the Higgs boson will be aware that identifying possible energies is a big thing to particle hunters. It's an interface between the theoretician and the experimentalist: “If particle W exists, its decay should emit Particles X and Y, carrying energy Z”.What's intriguing the scientists is this:
that particular energy doesn't match anything we already know about what generates galactic X-rays.
Science quotes one of the scientists, Maxim Markevitch of the NASA Goddard Space Flight Center, as putting it this way: “We could not match it with anything that would come from a thermal plasma”.You can read more here: http://bit.ly/Nqdt2f