Characterizing exact solutions from asymptotic physical concepts
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We contribute to the subject of the physical interpretation of exact solutions by characterizing them through a systematic study in terms of unambiguous physical concepts coming from systems in linearized gravity. We use the physical meaning of the leading order behavior of the Weyl spinor components $Ψ_0^0$, $Ψ_1^0$ and $Ψ_2^0$ and of the Maxwell spinor components $ϕ_0^0$ and $ϕ_1^0$ and integrate from future null infinity inwards the exact field equations. In this way it is assigned an unambiguous physical meaning to exact solutions. We indicate a method to generalize the procedure to radiating spacetimes.