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  Inferring fundamental spacetime symmetries with gravitational-wave memory: from LISA to the Einstein Telescope

Goncharov, B., Donnay, L., & Harms, J. (2024). Inferring fundamental spacetime symmetries with gravitational-wave memory: from LISA to the Einstein Telescope. Physical Review Letters, 132(24): 241401. doi:10.1103/PhysRevLett.132.241401.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000F-552D-0 Version Permalink: https://hdl.handle.net/21.11116/0000-000F-6F3F-0
Genre: Journal Article

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 Creators:
Goncharov, Boris1, Author           
Donnay, Laura, Author
Harms, Jan, Author
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc,Astrophysics, Cosmology and Extragalactic Astrophysics, astro-ph.CO
 Abstract: We revisit gravitational wave (GW) memory as the key to measuring spacetime
symmetries, extending beyond its traditional role in GW searches. In
particular, we show how these symmetries may be probed via displacement and
spin memory observations, respectively. We further find that the Einstein
Telescope's (ET) sensitivity enables constraining the strain amplitude of a
displacement memory to 2% and that of spin memory to 22%. Finally, we point out
that neglecting memory could lead to an overestimation of measurement
uncertainties for parameters of binary black hole (BBH) mergers by about 10% in
ET.

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 Dates: 2023-10-162024-05-092024-05-232024
 Publication Status: Issued
 Pages: 13 pages, 6 figures, 1 table
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 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 2310.10718
DOI: 10.1103/PhysRevLett.132.241401
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Title: Physical Review Letters
Source Genre: Journal
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Pages: - Volume / Issue: 132 (24) Sequence Number: 241401 Start / End Page: - Identifier: -