The UTMOST pulsar timing programme I: Overview and first results

• DOI: 10.1093/mnras/sty3390
• Publication Date: 2018-12-12T20:11:44Z
• Authors: F Jankowski; M Bailes; W van Straten; E F Keane; C Flynn; E D Barr; T Bateman; S Bhandari; M Caleb; D Campbell-Wilson; W Farah; A J Green; R W Hunstead; A Jameson; S Osłowski; A Parthasarathy; P A Rosado; V Venkatraman Kri...
• Keywords: Duty cycle

We present an overview and the first results from a large-scale pulsar timing programme that is part of UTMOST project at refurbished Molonglo Observatory Synthesis Radio Telescope (MOST) near Canberra, Australia. currently observe more than 400 mainly bright southern radio pulsars with up to daily cadences. For 205 (8 in binaries, 4 millisecond pulsars) we publish updated models, together their flux densities, density variability, pulse widths 843 MHz, derived observations spanning between 1.4 3 yr. In comparison ATNF catalogue, improve precision rotational astrometric parameters for 123 pulsars, 47 by least order magnitude. The time spans our measurements those literature are 48 yr, which allows us investigate long-term spin-down history estimate proper motions 60 24 newly determined most major improvements. consistent interferometric literature. A model two Gaussian components centred 139 $463~\text{km} \: \text{s}^{-1}$ fits transverse velocity distribution best. duty cycle distributions 50 10 per cent maximum best described log-normal medians 2.3 4.4 cent, respectively. discuss exhibit rate changes drifting subpulses. Finally, describe autonomous observing system dynamic scheduler has increased efficiency factor 2-3 static scheduling.