EXPLICIT EXPRESSIONS FOR THE ELECTRIC AND MAGNETIC-FIELDS OF A MOVINGMAGNETIC DIPOLE

Explicit expressions for the electric and magnetic fields of an arbitr arily moving particle possessing a constant magnetic moment are derive d from retarded integrals representing the solution of Maxwell's equat ions for electric and magnetic fields of a magnetized source. These ex pressions exhibit explicitly the useful separation of the fields into their 1/R, 1/R-2, and 1/R-3 parts. The total power radiated by this ma gnetic dipole is then calculated when the velocity, acceleration, and the derivative of acceleration are parallel. The low velocity limit of this power and the conservation of energy are used to derive a nonlin ear damping force acting on a nonrelativistic magnetic dipole. [S1063- 651X(98)09709-8].