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Testing beyond-Kerr spacetimes with GWTC-3

Santos, Rafael M. ; Nunes, Rafael C. ; de Araujo, Jose C. N.

The European physical journal. C, Particles and fields, 2024-03, Vol.84 (3), p.302-8, Article 302 [Periódico revisado por pares]

Berlin/Heidelberg: Springer Berlin Heidelberg

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Título:
Testing beyond-Kerr spacetimes with GWTC-3
Autor: Santos, Rafael M. ; Nunes, Rafael C. ; de Araujo, Jose C. N.
Assuntos: Accretion disks ; Astronomy ; Astrophysics and Cosmology ; Black holes ; Deviation ; Elementary Particles ; Gravitational fields ; Gravitational waves ; Gravity ; Hadrons ; Heavy Ions ; Hypotheses ; Measurement Science and Instrumentation ; Nuclear Energy ; Nuclear Physics ; Parameter estimation ; Physics ; Physics and Astronomy ; Quantum Field Theories ; Quantum Field Theory ; Regular Article - Theoretical Physics ; Relativity ; Spacetime ; String Theory ; Theory of relativity ; Universe
É parte de: The European physical journal. C, Particles and fields, 2024-03, Vol.84 (3), p.302-8, Article 302
Descrição: The Kerr spacetime is a fundamental solution of general relativity (GR), describing the gravitational field around a rotating, uncharged black hole (BH). Kerr spacetime has been crucial in modern astrophysics and it serves as a foundation for the study of gravitational waves (GWs). Possible deviations in Kerr geometry may indicate deviations from GR predictions. In this work, we consider the Johannsen–Psaltis metric, which is a beyond-Kerr metric characterized by a single free parameter, and then we probe this theory framework using several GWs observations from the third Gravitational-wave Transient Catalog (GWTC-3). We find that, for most of the events analyzed, there are no significant deviations from the null hypothesis, i.e. the Kerr metric. Our main findings demonstrate alignment and certain enhancements when compared to previous estimates documented in the literature.
Editor: Berlin/Heidelberg: Springer Berlin Heidelberg
Idioma: Inglês

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Testing beyond-Kerr spacetimes with GWTC-3

Santos, Rafael M. ; Nunes, Rafael C. ; de Araujo, Jose C. N.

Berlin/Heidelberg: Springer Berlin Heidelberg

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