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TitleSupermassive black hole astrophysics with pulsar timing arrays

AbstractThe detection of gravitational waves (GWs) is shaping our understanding of the Universe. At nHz frequencies, pulsar timing arrays (PTAs) promise to detect the signal coming from the cosmological population of supermassive black hole binaries (SMBHBs) within the next few years. After reviewing the astrophysics of SMBHBs, I will describe the current status of the PTA effort, present the most recent limits, their astrophysical implications and prospect so multimessenger astrophysics.

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