Probing supermassive black hole mergers and stalling with pulsar timing arrays

Abstract

The observation of gravitational-waves from merging supermassive black holes will be transformative: the detection of a low-frequency gravitational-wave background can tell us if and how supermassive black holes merge, inform our knowledge of galaxy merger rates and supermassive black hole masses, and enable the possibility of detecting new physics at nanohertz frequencies. All we have to do is time pulsars.

2 pages, 2 figures, invited comment

References in corpus (2)

• The Local Nanohertz Gravitational-Wave Landscape From Supermassive Black Hole Binaries
• Interactions between multiple supermassive black holes in galactic nuclei: a solution to the final parsec problem

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