3 papers
astro-ph.IM2025
Optimal robust detection statistics for pulsar timing arrays
Rutger van Haasteren, Bruce Allen, Joseph D. Romano
Pulsar timing arrays (PTAs) seek to detect a nano-Hz stochastic gravitational-wave background (GWB) by searching for the characteristic Hellings and Downs angular pattern of timing…
gr-qc2025
Likelihoods for Stochastic Gravitational Wave Background Data Analysis
Gabriele Franciolini, Mauro Pieroni, Angelo Ricciardone +1
We present a systematic study of likelihood functions used for Stochastic Gravitational Wave Background (SGWB) searches. By dividing the data into many short segments, one customar…
gr-qc2024
Harmonic spectrum of pulsar timing array angular correlations
Bruce Allen, Joseph D. Romano
Pulsar timing arrays (PTAs) detect gravitational waves (GWs) via the correlations they create in the arrival times of pulses from different pulsars. The mean correlation, a functio…