Centrifugal Acceleration In Jets From Agn

We consider the acceleration of a charged test particle due to the centrifugal force in a rotating magnetosphere. We analyse the forces acting on a particle while moving along a rotating radial field line and give an analytic expression for its centrifugal acceleration. Near the light cylinder the approximation of the motion of a particle as a bead-on-the-wire along a magnetic field line breaks down. Bearing on the breakdown of this approximation, we estimate the maximum Lorentz factor attainable via centrifugal acceleration.