The definition of mass in asymptotically de Sitter space-times

Dolan, Brian (2019) The definition of mass in asymptotically de Sitter space-times. Classical and Quantum Gravity, 36. 077001. ISSN 0264-9381 Online ISSN 1361-6382

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An invariant definition of mass in asymptotically de-Sitter space-times is given that relies on the existence of a time-like Killing vector on a sphere surrounding the mass but does not require going to an asymptotic region. In particular the mass can be calculated exactly on a sphere inside the cosmological horizon. The formalism requires varying the background metric solution by a perturbation that satisfies the linearized equations of motion but need not share the Killing symmetry of the solution and is therefore ideally suited to calculating masses in stationary space-times perturbed by a gravitational wave without going beyond the cosmological horizon.

Item Type: Article
Uncontrolled Keywords: general relativity; black holes; mass; symmetries
Divisions: School of Theoretical Physics > Preprints
Date Deposited: 09 Nov 2021 09:21
Last Modified: 15 Dec 2022 03:04

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