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The Subpulse Modulation Properties of Pulsars and its Frequency Dependence
Patrick Weltevrede, Ben Stappers, R. T. Edwards
A large sample of about two hundred pulsars have been observed to study their subpulse modulation at an observing wavelength of (when achievable) both 21 and 92 cm using the Wester…
Precision timing of PSR J0437-4715: an accurate pulsar distance, a high pulsar mass and a limit on the variation of Newton's gravitational constant
J. P. W. Verbiest, M. Bailes, W. van Straten +7
Analysis of ten years of high-precision timing data on the millisecond pulsar PSR J0437-4715 has resulted in a model-independent kinematic distance based on an apparent orbital per…
The subpulse modulation properties of pulsars at 92 cm and the frequency dependence of subpulse modulation
P. Weltevrede, B. W. Stappers, R. T. Edwards
A large sample of pulsars has been observed to study their subpulse modulation at an observing wavelength (when achievable) of both 21 and 92 cm using the Westerbork Synthesis Radi…
Dispersion Measure Variations and their Effect on Precision Pulsar Timing
X. P. You, G. Hobbs, W. A. Coles +11
We present an analysis of the variations seen in the dispersion measures (DMs) of 20 millisecond pulsars observed as part of the Parkes Pulsar Timing Array project. We carry out a…
Drifting subpulse survey at 21 cm
P. Weltevrede, R. T. Edwards, B. W. Stappers
We present the statistical results of a systematic, unbiased search for subpulse modulation of 187 pulsars performed with the Westerbork Synthesis Radio Telescope (WSRT) in the Net…
Upper bounds on the low-frequency stochastic gravitational wave background from pulsar timing observations: current limits and future prospects
F. A. Jenet, G. B. Hobbs, W. van Straten +7
Using a statistically rigorous analysis method, we place limits on the existence of an isotropic stochastic gravitational wave background using pulsar timing observations. We consi…