NANOGrav CONSTRAINTS ON GRAVITATIONAL WAVE BURSTS WITH MEMORY
NANOGrav CONSTRAINTS ON GRAVITATIONAL WAVE BURSTS WITH MEMORY
Among efforts to detect gravitational radiation, pulsar timing arrays are uniquely poised to detect "memory" signatures, permanent perturbations in spacetime from highly energetic astrophysical events such as mergers of supermassive black hole binaries. The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) observes dozens of the most stable millisecond pulsars …