Gravitating Dyons in Vaidya Geometry
  Gravitating monopoles and dyons in Einstein-Yang-Mills (EYM) or Einstein-Yang-Mills-Higgs (EYMH) systems have been extensively studied for various curved spacetimes, including those of black holes. We construct dyonic solutions of the EYMH theory in Vaidya spacetime using a set of generalized Julia-Zee ansatz for the fields. It is found that the dyonic charge is static in nature and it does not contribute to the energy of the null dust. 
Buddhi Vallabh Tripathi, Hemwati Nandan, Heinz Dehnen, K D Purohit
gr-qc