Centrifugal acceleration (astrophysics)
Centrifugal acceleration of astroparticles to relativistic energies might take place in rotating astrophysical objects (see also Fermi acceleration). It is strongly believed that active galactic nuclei and pulsars have rotating magnetospheres, therefore, they potentially can drive charged particles to high and ultra-high energies.
Source: Wikipedia — Centrifugal acceleration (astrophysics) (CC BY-SA 4.0)