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Results for the International Pulsar Timing Array Second Mock Data Challenge: New Techniques and Challenges for the Detection of Low-Frequency Gravitational-Wave Signals
P. T. Baker, P. R. Brook, W. C. Fiore +5
We present a detailed analysis of the International Pulsar Timing Array (IPTA) Second Mock Data Challenge. We tested our analysis methods using the open datasets, and then analyzed…
The NANOGrav 11-Year Data Set: Limits on Gravitational Wave Memory
K. Aggarwal, Z. Arzoumanian, P. T. Baker +58
The mergers of supermassive black hole binaries (SMBHBs) promise to be incredible sources of gravitational waves (GWs). While the oscillatory part of the merger gravitational wavef…
The NANOGrav 11-Year Data Set: Evolution of Gravitational Wave Background Statistics
J. S. Hazboun, J. Simon, S. R. Taylor +60
An ensemble of inspiraling supermassive black hole binaries should produce a stochastic background of very low frequency gravitational waves. This stochastic background is predicte…
Linking Long- and Short-Term Emission Variability in Pulsars
Paul Brook, Aris Karastergiou, Simon Johnston
It is now known that the emission from radio pulsars can vary over a wide range of timescales, from fractions of seconds to decades. However, it is not yet known if long- and short…
Relativistic Shapiro delay measurements of an extremely massive millisecond pulsar
H. Thankful Cromartie, Emmanuel Fonseca, Scott M. Ransom +24
Despite its importance to our understanding of physics at supranuclear densities, the equation of state (EoS) of matter deep within neutron stars remains poorly understood. Millise…
High-Precision X-ray Timing of Three Millisecond Pulsars with NICER: Stability Estimates and Comparison with Radio
J. S. Deneva, P. S. Ray, A. Lommen +45
The Neutron Star Interior Composition Explorer (NICER) is an X-ray astrophysics payload on the International Space Station. It enables unprecedented high-precision timing of millis…