Timing analysis for 20 millisecond pulsars in the Parkes Pulsar Timing Array

By D. Reardon, G. Hobbs, William A. Coles, Y. Levin, Michael J. Keith, M. Bailes, N. D. Ramesh Bhat, S. Burke-Spolaor, S. Dai, M. Kerr and 11 more. 2015

240 citations recorded by the source corpus.

We present timing models for 20 millisecond pulsars in the Parkes Pulsar Timing Array. The precision of the parameter measurements in these models has been improved over earlier results by using longer data sets and modelling the non-stationary noise. We describe a new noise modelling procedure and demonstrate its effectiveness using simulated data. Our methodology includes the addition of annual dispersion measure (DM) variations to the timing models of some pulsars. We present the first significant parallax measurements for PSRs J1024-0719, J1045-4509, J1600-3053, J1603-7202, and J1730-2304, as well as the first significant measurements of some post-Keplerian orbital parameters in six binary pulsars, caused by kinematic effects. Improved Shapiro delay measurements have resulted in much improved pulsar mass measurements, particularly for PSRs J0437-4715 and J1909-3744 with M-p = 1.44 +/- 0.07 and 1.47 +/- 0.03 M-circle dot, respectively. The improved orbital period-derivative measurement for PSR J0437-4715 results in a derived distance measurement at the 0.16 per cent level of precision, D = 156.79 +/- 0.25 pc, one of the most fractionally precise distance measurements of any star to date.

Subfields: Aerospace Engineering, Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/779b772e9445bbc17ce7944f57279127afa3d777

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Aerospace Engineering

In Astronomy and Astrophysics

In Atomic and Molecular Physics, and Optics

Citations in the corpus

The quest for dual and binary supermassive black holes: A multi-messenger view (2019, background): “Several PTA projects around the world are monitoring O(100) millisecond pulsars, some of them to better than 100 ns accuracy (Desvignes et al., 2016; Reardon et al., 2016; Verbiest et al., 2016; Arzoumanian et al., 2018).”
The NANOGrav 11-year Data Set: High-precision Timing of 45 Millisecond Pulsars (2017, methodology): “Similar programs are being carried out by the Parkes Pulsar Timing Array (Hobbs 2013; Reardon et al. 2016) and the European Pulsar Timing Array (Kramer & Champion 2013; Desvignes et al. 2016).”
A NEW ELECTRON-DENSITY MODEL FOR ESTIMATION OF PULSAR AND FRB DISTANCES (2016, background): “It is clear that the YMW16 model has benefited greatly from recent parallax measurements for relatively high-latitude pulsars from VLBI (e.g., Chatterjee et al. 2009) and pulsar timing array projects (Matthews et al. 2016; Reardon et al. 2016).”
Equation of state sensitivities when inferring neutron star and dense matter properties (2018, methodology): “For the first two scenarios we consider the two primary science targets of NICER (Arzoumanian et al. 2014): the pulsar PSR J0437−4715 with a mass of 1.44 ± 0.07 M (Reardon et al. 2016) and PSR J0030+0451, for which the mass is unknown.”