Multimessenger observations, particularly from binary neutron star mergers such as GW170817, have empirically confirmed that gravitational waves travel at the speed of light.
Evidence for · 4
Constraining the effective field theory of dark energy with multimessenger astronomy
2023 · cited by 3
Discusses constraining the propagation speed of gravitational waves using multimessenger astronomy.
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More for · 3
GW170817: A Short Review of the First Multimessenger Event in Gravitational Astronomy
2025 · cited by 2
Notes that joint gravitational and electromagnetic observations from events like GW170817 have been used to estimate the speed of gravitational waves.
Measuring the speed of gravity and the cosmic expansion with time delays between gravity and light from binary neutron stars
2024 · cited by 2
Proposes methodologies utilizing time delays between gravitational waves and gamma-ray bursts to constrain the speed of gravity.
LIGO/Virgo Listens to Neutron Stars
2020 · cited by 0
States that observations from neutron star mergers provide an extremely accurate determination that the speed of gravitational waves matches the speed of light.