Gravitational Multipoles in Five Dimensions

Fuente: arXiv
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Main Authors: Heynen, Jef, Mayerson, Daniel R.
Format: Preprint
Published: 2023
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author Heynen, Jef
Mayerson, Daniel R.
author_facet Heynen, Jef
Mayerson, Daniel R.
contents We define gravitational mass and current multipoles for five-dimensional, stationary, and asymptotically flat vacuum metrics. We do this by generalizing Thorne's asymptotically Cartesian and mass-centered (ACMC) coordinate formalism to five dimensions, and prove that the multipoles defined in this way are unambiguously well-defined. Further, these two towers of multipole tensors, in the case of biaxial symmetry, reduce to a tower of mass multipoles $M_\ell$, and two separate towers of current or angular momentum multipoles $S^{(1)}_\ell, S^{(2)}_\ell$. We apply our formalism to a few examples, in particular Myers-Perry black holes, black rings, and smooth multicentered geometries.
format Preprint
id arxiv_https___arxiv_org_abs_2312_04352
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Gravitational Multipoles in Five Dimensions
Heynen, Jef
Mayerson, Daniel R.
General Relativity and Quantum Cosmology
High Energy Physics - Theory
We define gravitational mass and current multipoles for five-dimensional, stationary, and asymptotically flat vacuum metrics. We do this by generalizing Thorne's asymptotically Cartesian and mass-centered (ACMC) coordinate formalism to five dimensions, and prove that the multipoles defined in this way are unambiguously well-defined. Further, these two towers of multipole tensors, in the case of biaxial symmetry, reduce to a tower of mass multipoles $M_\ell$, and two separate towers of current or angular momentum multipoles $S^{(1)}_\ell, S^{(2)}_\ell$. We apply our formalism to a few examples, in particular Myers-Perry black holes, black rings, and smooth multicentered geometries.
title Gravitational Multipoles in Five Dimensions
topic General Relativity and Quantum Cosmology
High Energy Physics - Theory
url https://arxiv.org/abs/2312.04352