From harmonic to Newman-Unti coordinates at the second post-Minkowskian order
Abstract
In this paper, we present the complete transformations of a generic metric from (generalized) harmonic to Newman-Unti coordinates up to the second post-Minkowskian order (G2). This allows us to determine the asymptotic shear, the Bondi mass aspect, and the angular-momentum aspect at both orders.
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