Gravitational Waves in Massive Gravity Theories: Waveforms, Fluxes, and Constraints from Extreme-Mass-Ratio Mergers
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- PhysRevLett.121.251103
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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 nonspinning 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 Gpc away or collapsing stars in the nearby galaxy may be used to constrain the mass of the graviton to be smaller than similar to 10(-23) 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.
Originalsprog | Engelsk |
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Artikelnummer | 251103 |
Tidsskrift | Physical Review Letters |
Vol/bind | 121 |
Udgave nummer | 25 |
Antal sider | 6 |
ISSN | 0031-9007 |
DOI | |
Status | Udgivet - 17 dec. 2018 |
Eksternt udgivet | Ja |
ID: 299201551