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Constraining the solution to the last parsec problem with pulsar timing

Constraining the solution to the last parsec problem with pulsar timing

The detection of a stochastic gravitational-wave signal from the superposition of many inspiraling supermassive black holes with pulsar timing arrays (PTAs) is likely to occur within the next decade. With this detection will come the opportunity to learn about the processes that drive black-hole-binary systems toward merger through their effects …