The NANOGrav 11 yr Data Set: Evolution of Gravitational-wave Background Statistics
The NANOGrav 11 yr Data Set: Evolution of Gravitational-wave Background Statistics
An ensemble of inspiraling supermassive black hole binaries should produce a stochastic background of very low frequency gravitational waves. This stochastic background is predicted to be a power law, with a spectral index of -2/3, and it should be detectable by a network of precisely timed millisecond pulsars, widely distributed …