Gravitational radiation of charged rotating body

Abstract

The Newman-Penrose spin coefficient formalism is applied to nonstationary charged rotating body. The spin coefficients, tetrad components of trace free Ricci tensor and Weyl components are obtained. The energy-momentum tensor consists of a radiating field and a residual one. Asymptotically the charge contribution term fade out more promptly than the geometrical optics term which can be interpreted as a source free Maxwell field.