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astro-ph.CO2026
Anisotropies in the PTA gravitational wave background: what can they teach us about supermassive black hole binaries?
Matias Zaldarriaga, Gabriela Sato-Polito
The gravitational wave background detected by pulsar timing arrays is sourced by a finite population of supermassive black hole binaries, and is therefore anisotropic. We ask what…
astro-ph.CO2026
Summary statistic for pulsar timing arrays
Gabriela Sato-Polito, Matias Zaldarriaga, Barak Zackay
The timing residuals produced by gravitational-wave signals can be described as an incoherent (pulsar term) contribution and a coherent (Earth term) map on the sky, which PTAs meas…