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Periodic modulation in pulse arrival times from young pulsars: a renewed case for neutron star precession
Matthew Kerr, George Hobbs, Simon Johnston +1
In a search for periodic variation in the arrival times of pulses from 151 young, energetic pulsars, we have identified seven cases of modulation consistent with one or two harmoni…
A study of spatial correlations in pulsar timing array data
Caterina Tiburzi, George Hobbs, Matthew Kerr +6
Pulsar timing array experiments search for phenomena that produce angular correlations in the arrival times of signals from millisecond pulsars. The primary goal is to detect an is…
Profile Stochasticity in PSR J1909-3744
L. Lentati, R. M. Shannon
We extend the recently introduced Bayesian framework `Generative Pulsar Timing Analysis' to incorporate both pulse jitter (high frequency variation in the arrival time of the pulse…
Gravitational waves from binary supermassive black holes missing in pulsar observations
R. M. Shannon, V. Ravi, L. T. Lentati +19
Gravitational waves are expected to be radiated by supermassive black hole binaries formed during galaxy mergers. A stochastic superposition of gravitational waves from all such bi…
Detecting nanohertz gravitational waves with pulsar timing arrays
Xing-Jiang Zhu, Linqing Wen, George Hobbs +2
Complementary to ground-based laser interferometers, pulsar timing array experiments are being carried out to search for nanohertz gravitational waves. Using the world's most power…
Pulsar Observations of Extreme Scattering Events
W. A. Coles, M. Kerr, R. M. Shannon +17
Extreme scattering events (ESEs) in the interstellar medium (ISM) were first observed in regular flux measurements of compact extragalactic sources. They are characterized by a flu…