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Improving pulsar timing precision through superior Time-of-Arrival creation
J. Wang, J. P. W. Verbiest, G. M. Shaifullah +6
The measurement of pulsar pulse times-of-arrival (ToAs) is a crucial step in detecting low-frequency gravitational waves. To determine ToAs, we can use template-matching to compare…
Removal and replacement of interference in tied-array radio pulsar observations using the spectral kurtosis estimator
M. Purver, C. G. Bassa, I. Cognard +10
We describe how to implement the spectral kurtosis method of interference removal (zapping) on a digitized signal of averaged power values. Spectral kurtosis is a hypothesis test,…
Apertif, Phased Array Feeds for the Westerbork Synthesis Radio Telescope
W. A. van Cappellen, T. A. Oosterloo, M. A. W. Verheijen +87
We describe the APERture Tile In Focus (Apertif) system, a phased array feed (PAF) upgrade of the Westerbork Synthesis Radio Telescope which has transformed this telescope into a h…
A pulsar-based timescale from the International Pulsar Timing Array
G. Hobbs, L. Guo, R. N. Caballero +56
We have constructed a new timescale, TT(IPTA16), based on observations of radio pulsars presented in the first data release from the International Pulsar Timing Array (IPTA). We us…
MeerTime - the MeerKAT Key Science Program on Pulsar Timing
M. Bailes, E. Barr, N. D. R. Bhat +28
The MeerKAT telescope represents an outstanding opportunity for radio pulsar timing science with its unique combination of a large collecting area and aperture efficiency (effectiv…
The beamformer and correlator for the Large European Array for Pulsars
R. Smits, C. G. Bassa, G. H. Janssen +10
The Large European Array for Pulsars combines Europe's largest radio telescopes to form a tied-array telescope that provides high signal-to-noise observations of millisecond pulsar…