Abstract
Speed of gravitational waves remains c when it propagates through medium with stress tensor of a perfect fluid. Gravitational waves are absorbed in matter with non-zero shear viscosity. The speed of gravitational waves can differ from c when propagating through in-homogenous scalar field configurations and in modified theories of gravity. Observationally, the damping of gravitational waves and the change in speed of gravity can be probed using multi-messenger signals (γ rays and gravitational waves ) from neutron-star mergers.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
