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12 papers · 2 filters
A MeerKAT, e-MERLIN, H.E.S.S. and Swift search for persistent and transient emission associated with three localised FRBs
James O. Chibueze, M. Caleb, L. Spitler +156
We report on a search for persistent radio emission from the one-off Fast Radio Burst (FRB) 20190714A, as well as from two repeating FRBs, 20190711A and 20171019A, using the MeerKA…
Strong-field Gravity Tests with the Double Pulsar
M. Kramer, I. H. Stairs, R. N. Manchester +27
Continued observations of the Double Pulsar, PSR J0737-3039A/B, consisting of two radio pulsars (A and B) that orbit each other with a period of 2.45hr in a mildly eccentric (e=0.0…
The Thousand-Pulsar-Array programme on MeerKAT VII: Polarisation properties of pulsars in the Magellanic Clouds
S. Johnston, A. Parthasarathy, R. A. Main +12
The Magellanic Clouds are the only external galaxies known to host radio pulsars. The dispersion and rotation measures of pulsars in the Clouds can aid in understanding their struc…
Noise analysis in the European Pulsar Timing Array data release 2 and its implications on the gravitational-wave background search
A. Chalumeau, S. Babak, A. Petiteau +49
The European Pulsar Timing Array (EPTA) collaboration has recently released an extended data set for six pulsars (DR2) and reported evidence for a common red noise signal. Here we…
Radio and X-ray observations of giant pulses from XTE J1810-197
M. Caleb, K. Rajwade, G. Desvignes +6
We present the results of two years of radio and X-ray monitoring of the magnetar XTE J1810197 since the radio re-activation in late 2018. Single pulse analysis of radio observa…
Common-red-signal analysis with 24-yr high-precision timing of the European Pulsar Timing Array: Inferences in the stochastic gravitational-wave background search
S. Chen, R. N. Caballero, Y. J. Guo +49
We present results from the search for a stochastic gravitational-wave background (GWB) as predicted by the theory of General Relativity using six radio millisecond pulsars from th…
The Thousand-Pulsar-Array programme on MeerKAT: -- VI. Pulse widths of a large and diverse sample of radio pulsars
B. Posselt, A. Karastergiou, S. Johnston +14
We present pulse width measurements for a sample of radio pulsars observed with the MeerKAT telescope as part of the Thousand-Pulsar-Array (TPA) programme in the MeerTime project.…
Timing observations of three Galactic millisecond pulsars
D. R. Lorimer, A. M. Kawash, P. C. C. Freire +16
We report observed and derived timing parameters for three millisecond pulsars (MSPs) from observations collected with the Parkes 64-m telescope, Murriyang. The pulsars were found…
FAST early pulsar discoveries: Effelsberg follow-up
M. Cruces, D. J. Champion, D. Li +21
We report the follow-up of 10 pulsars discovered by the Five-hundred-meter Aperture Spherical radio-Telescope (FAST) during its commissioning. The pulsars were discovered at a freq…
Multi-epoch searches for relativistic binary pulsars and fast transients in the Galactic Centre
R. P. Eatough, P. Torne, G. Desvignes +10
The high stellar density in the central parsecs around the Galactic Centre makes it a seemingly favourable environment for finding relativistic binary pulsars. These include pulsar…
Discovery and modelling of broad-scale plasma lensing in black-widow pulsar J20510827
F. X. Lin, R. A. Main, J. P. W. Verbiest +2
We report on an unusually bright observation of PSR J20510827 recorded during a regular monitoring campaign of black-widow pulsar systems with the Effelsberg 100-m telescope. Th…
An analysis of the time-frequency structure of several bursts from FRB121102 detected with MeerKAT
E. Platts, M. Caleb, B. W. Stappers +11
We present a detailed study of the complex time-frequency structure of a sample of previously reported bursts of FRB 121102 detected with the MeerKAT telescope in September 2019. T…