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Measurement and correction of variations in interstellar dispersion in high-precision pulsar timing
M. J. Keith, W. Coles, R. M. Shannon +16
Signals from radio pulsars show a wavelength-dependent delay due to dispersion in the interstellar plasma. At a typical observing wavelength, this delay can vary by tens of microse…
The High Time Resolution Universe Survey VI: An Artificial Neural Network and Timing of 75 Pulsars
S. D. Bates, M. Bailes, B. R. Barsdell +19
We present 75 pulsars discovered in the mid-latitude portion of the High Time Resolution Universe survey, 54 of which have full timing solutions. All the pulsars have spin periods…
Development of a pulsar-based timescale
G. Hobbs, W. Coles, R. N. Manchester +21
Using observations of pulsars from the Parkes Pulsar Timing Array (PPTA) project we develop the first pulsar-based timescale that has a precision comparable to the uncertainties in…
Radio emission evolution, polarimetry and multifrequency single pulse analysis of the radio magnetar PSR J1622-4950
L. Levin, M. Bailes, S. D. Bates +11
Here we report on observations of the radio magnetar PSR J1622-4950 at frequencies from 1.4 to 17 GHz. We show that although its flux density is varying up to a factor of ~10 withi…
The High Time Resolution Universe Survey - V: Single-pulse energetics and modulation properties of 315 pulsars
S. Burke-Spolaor, S. Johnston, M. Bailes +11
We report on the pulse-to-pulse energy distributions and phase-resolved modulation properties for catalogued pulsars in the southern High Time Resolution Universe intermediate-lati…
Multi-wavelength Observations of the Radio Magnetar PSR J1622-4950 and Discovery of its Possibly Associated Supernova Remnant
Gemma E. Anderson, B. M. Gaensler, Patrick O. Slane +29
We present multi-wavelength observations of the radio magnetar PSR J1622-4950 and its environment. Observations of PSR J1622-4950 with Chandra (in 2007 and 2009) and XMM (in 2011)…