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gr-qc2024
Source anisotropies and pulsar timing arrays
Bruce Allen, Deepali Agarwal, Joseph D. Romano +1
Pulsar timing arrays (PTA) hunt for gravitational waves (GW) by searching for the correlations that GWs induce in the time-of-arrival residuals from different pulsars. If the GW so…
gr-qc2024
Cosmic variance of the Hellings and Downs correlation for ensembles of universes having nonzero angular power spectra
Deepali Agarwal, Joseph D. Romano
Gravitational waves (GWs) induce correlated perturbations to the arrival times of pulses from an array of galactic millisecond pulsars. The expected correlations, obtained by avera…