Turbulence and particle acceleration in giant radio haloes: the origin of seed electrons
Turbulence and particle acceleration in giant radio haloes: the origin of seed electrons
About one-third of X-ray-luminous clusters show smooth, Mpc-scale radio emission, known as giant radio haloes. One promising model for radio haloes is Fermi-II acceleration of seed relativistic electrons by compressible turbulence. The origin of these seed electrons has never been fully explored. Here, we integrate the Fokker–Planck equation of the …