Galactic Cosmic Rays are defined as ones which have energies below 1x10^18 eV and they are made up of ions and electrons travelling close to the speed of light. In the past it was believed that Supernova remnants were the likely source of Galactic Cosmic Rays.
But now some scientists are doubting whether there is sufficient occurrences of Supernova within our own Milky Way Galaxy to account for the relentless bombardment from all directions and are turning to extragalactic regions which contain clusters of stars with the potential to go Supernova.
Read more: http://bit.ly/8a3voO
No comments:
Post a Comment