Cosmic rays: Galactic knee and extragalactic ankle
Monday, June 3, 2013 - 13:00
in Astronomy & Space
A new experiment has yielded the important result that a characteristic bend in the energy spectrum of high-energy cosmic rays, also called “knee”, is located at different energies for light and heavy primary particles. Astronomers have found that thesecosmic radiation particles are accelerated in galaxies other than the Milky Way.