On the Bondi mass of Maxwell-Klein-Gordon spacetimes

Abstract

In this short contribution we calculate the Bondi mass of asymptotically flat spacetimes with interacting electromagnetic and scalar fields. We present the system of coupled Einstein-Maxwell-Klein-Gordon equations in the spinor form and show final expressions for the Bondi mass and corresponding mass-loss formula. Details of the calculations, including the full set of the Newman-Penrose equations for the system considered, can be found in Ref. 11.