NO GLORY IN COSMIC-STRING THEORY

Light deflection by non-axisymmetric cosmic strings is studied. Variou s properties of the geodesics are obtained including the non-existence of closed or almost closed geodesics. It is shown that the behaviour of the geodesics resembles the case of the axisymmetric cosmic strings usually studied. In particular no exotic behaviour such as glory scat tering is possible. The usual formula for the deflection of distant ge odesics is obtained. An application to the slow motion of SU(3) monopo les, considered as geodesic motion on a moduli space, is also given.