Astrophysics - Cosmology and Nongalactic Astrophysics

Galaxy Tomography with the Gravitational Wave Background from Supermassive Black Hole Binaries

Cross-Correlating the Universe: The Gravitational Wave Background and Large-Scale Structure

The NANOGrav 15 Yr Data Set: Constraints on Supermassive Black Hole Binaries from the Gravitational-wave Background

Massive Black Hole Binaries as LISA Precursors in the Roman High Latitude Time Domain Survey

Discovery and Characterization of Galactic-scale Dual Supermassive Black Holes Across Cosmic Time

A Quasar-based Supermassive Black Hole Binary Population Model: Implications for the Gravitational Wave Background