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The Magnetic Field of the Solar Corona from Pulsar Observations
S. M. Ord, S. Johnston, J. Sarkissian
We present a novel experiment with the capacity to independently measure both the electron density and the magnetic field of the solar corona. We achieve this through measurement o…
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…
Transient pulsed radio emission from a magnetar
Fernando Camilo, Scott Ransom, Jules Halpern +4
Anomalous X-ray pulsars (AXPs) are slowly rotating neutron stars with very bright and highly variable X-ray emission that are believed to be powered by ultra-strong magnetic fields…
Radio observations of comet 9P/Tempel 1 with the Australia Telescope facilities during the Deep Impact encounter
P. A. Jones, J. M. Sarkissian, M. G. Burton +2
We present radio observations of comet 9P/Tempel 1 associated with the Deep Impact spacecraft collision of 2005 July 4. Weak 18-cm OH emission was detected with the Parkes 64-m tel…