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Gravitational wave detection using pulsars: status of the Parkes Pulsar Timing Array project
G. B. Hobbs, M. Bailes, N. D. R. Bhat +17
The first direct detection of gravitational waves may be made through observations of pulsars. The principal aim of pulsar timing array projects being carried out worldwide is to d…
The Statistics of Radio Astronomical Polarimetry: Bright Sources and High Time Resolution
W. van Straten
A four-dimensional statistical description of electromagnetic radiation is developed and applied to the analysis of radio pulsar polarization. The new formalism provides an element…
PuMaII: A wide band pulsar machine for the WSRT
Ramesh Karuppusamy, Ben Stappers, Willem van Straten
The Pulsar Machine II (PuMa II) is the new flexible pulsar processing backend system at the Westerbork Synthesis Radio Telescope (WSRT), specifically designed to take advantage of…
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…
Pulsar rotation measures and the large-scale structure of Galactic magnetic field
J. L. Han, R. N. Manchester, A. G. Lyne +2
The large-scale magnetic field of our Galaxy can be probed in three dimensions using Faraday rotation of pulsar signals. We report on the determination of 223 rotation measures fro…
Radio Astronomical Polarimetry and High-Precision Pulsar Timing
W. van Straten
A new method of matrix template matching is presented in the context of pulsar timing analysis. Pulse arrival times are typically measured using only the observed total intensity l…
A neutral hydrogen distance limit to the relativistic binary PSR J1141-6545
S. M. Ord, M. Bailes, W. van Straten
We have obtained an HI absorption spectrum of the relativistic binary PSR J1141-6545 and used it to constrain the distance to the system. The spectrum suggests that the pulsar is a…
The Scintillation Velocity of the Relativistic Binary Pulsar PSR J1141-6545
S. M. Ord, M. Bailes, W. van Straten
We report a dramatic orbital modulation in the scintillation timescale of the relativistic binary pulsar J1141--6545 that both confirms the validity of the scintillation speed meth…
High-resolution single-pulse studies of the Vela Pulsar
M. Kramer, S. Johnston, W. van Straten
We present high-resolution multi-frequency single-pulse observations of the Vela pulsar, PSR B0833-45, aimed at studying micro-structure, phase-resolved intensity fluctuations and…
Radio astronomical polarimetry and phase-coherent matrix convolution
W. van Straten
A new phase-coherent technique for the calibration of polarimetric data is presented. Similar to the one-dimensional form of convolution, data are multiplied by the response functi…
A test of general relativity from the three-dimensional orbital geometry of a binary pulsar
W. van Straten, M. Bailes, M. C. Britton +4
Binary pulsars provide an excellent system for testing general relativity because of their intrinsic rotational stability and the precision with which radio observations can be use…
The Swinburne Intermediate Latitude Pulsar Survey
R. T. Edwards, M. Bailes, W. van Straten +1
We have conducted a survey of intermediate Galactic latitudes using the 13-beam 21-cm multibeam receiver of the Parkes 64-m radio telescope. The survey covered the region enclosed…
High time-resolution observations of the Vela pulsar
Simon Johnston, Willem van Straten, Michael Kramer +1
We present high time resolution observations of single pulses from the Vela pulsar (PSR B0833-45) made with a baseband recording system at observing frequencies of 660 and 1413 MHz…