Science Daily May 9, 2019
Physicists have long known that gravitational waves leave a memory on the particles along their path and have identified five such memories. An international team of researchers (USA – Cornell University, Ireland, the Netherlands) has identified three more observables that show the effects of gravitational waves in a flat region in spacetime that experiences a burst of gravitational waves, after which it returns to be a flat region. Each new observable provides different ways of confirming the theory of general relativity and offers insight into the intrinsic properties of gravitational waves…read more. TECHNICAL ARTICLEÂ
Persistence of Gravitational-Wave Memory https://physics.aps.org/synopsis-for/10.1103/PhysRevD.99.084044. Credit: Persistence of Gravitational-Wave Memory. Published 25 April 2019