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astro-ph.GA2025
Uncertainties in the supermassive black hole abundance and implications for the GW background
Gabriela Sato-Polito, Matias Zaldarriaga
The present-day mass function of supermassive black holes is the most important observable quantity for the prediction and theoretical interpretation of the gravitational wave back…
astro-ph.CO2025★ 1 cited
Evolution of SMBHs in light of PTA measurements: implications for growth by mergers and accretion
Gabriela Sato-Polito, Matias Zaldarriaga, Eliot Quataert
We study the growth of supermassive black holes accounting for both accretion and mergers. The former is informed by observations of the quasar luminosity function (QLF) and the la…