This review summarises recent progress in pulsar timing array research and the current status of nanohertz gravitational wave astronomy. I outline the techniques enabling decade-long, sub-microsecond-precision timing, present results from PTA collaborations between 2023-2025, and discuss their implications for supermassive black-hole binaries, cosmological sources, and beyond-Standard-Model physics. I also highlight complimentary efforts probing the nanohertz regime.
Shaifullah, G. (In corso di stampa). Pulsar Timing Arrays - challenges and current status. CLASSICAL AND QUANTUM GRAVITY [10.1088/1361-6382/ae19c2].
Pulsar Timing Arrays - challenges and current status
Shaifullah, Golam Mohiuddin
In corso di stampa
Abstract
This review summarises recent progress in pulsar timing array research and the current status of nanohertz gravitational wave astronomy. I outline the techniques enabling decade-long, sub-microsecond-precision timing, present results from PTA collaborations between 2023-2025, and discuss their implications for supermassive black-hole binaries, cosmological sources, and beyond-Standard-Model physics. I also highlight complimentary efforts probing the nanohertz regime.
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