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Gravitational wave detection using high precision pulsar observations
G. Hobbs
Pulsar timing experiments are reaching sufficient sensitivity to detect a postulated stochastic gravitational wave background generated by merging supermassive black hole systems i…
Evidence for alignment of the rotation and velocity vectors in pulsars. II. Further data and emission heights
Simon Johnston, M. Kramer, A. Karastergiou +3
We have conducted observations of 22 pulsars at frequencies of 0.7, 1.4 and 3.1 GHz and present their polarization profiles. The observations were carried out for two main purposes…
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…
Tests of general relativity from timing the double pulsar
M. Kramer, I. H. Stairs, R. N. Manchester +12
The double pulsar system, PSR J0737-3039A/B, is unique in that both neutron stars are detectable as radio pulsars. This, combined with significantly higher mean orbital velocities…
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…
Tempo2, a new pulsar timing package. II: The timing model and precision estimates
R. T. Edwards, G. B. Hobbs, R. N. Manchester
Tempo2 is a new software package for the analysis of pulsar pulse times of arrival. In this paper we describe in detail the timing model used by tempo2, and discuss limitations on…