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Article
Report number arXiv:1809.00673
Title Gravitational waves in massive gravity theories: waveforms, fluxes and constraints from extreme-mass-ratio mergers
Author(s) Cardoso, Vitor (Lisbon, CENTRA ; Lisbon, IST ; CERN) ; Castro, Gonçalo (Lisbon, CENTRA ; Lisbon, IST) ; Maselli, Andrea (Lisbon, CENTRA ; Lisbon, IST)
Publication 2018-12-18
Imprint 2018-09-03
Number of pages 6
Note Important clarifications on screening and on our results added. Accepted for publication in Physical Review Letters
In: Phys. Rev. Lett. 121 (2018) 251103
DOI 10.1103/PhysRevLett.121.251103
Subject category gr-qc ; General Relativity and Cosmology
Abstract Is the graviton massless? This problem was addressed in the literature at a phenomenological level, using modified dispersion relations for gravitational waves, in linearized calculations around flat space. Here, we perform a detailed analysis of the gravitational waveform produced when a small particle plunges or inspirals into a large non-spinning black hole. Our results should presumably also describe the gravitational collapse to black holes and explosive events such as supernovae. In the context of a theory with massive gravitons and screening, merging objects up to $1\,{\rm Gpc}$ away or collapsing stars in the nearby galaxy may be used to constrain the mass of the graviton to be smaller than $\sim 10^{-23}\,{\rm eV}$, with low-frequency detectors. Our results suggest that the absence of dipolar gravitational waves from black hole binaries may be used to rule out entirely such theories.
Copyright/License preprint: (License: arXiv nonexclusive-distrib 1.0)
publication: © 2018-2024 authors (License: CC-BY-4.0)



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