# Long-term observations of the pulsars in 47 Tucanae - II. Proper motions, accelerations and jerks

@article{Freire2017LongtermOO,
title={Long-term observations of the pulsars in 47 Tucanae - II. Proper motions, accelerations and jerks},
author={Paulo C. C. Freire and Alessandro Ridolfi and Michael Kramer and Christine A. Jordan and Richard N. Manchester and Pablo Torne and John M. Sarkissian and Craig O. Heinke and Nichi D'amico and F. Camilo and Duncan R. Lorimer and Andrew G. Lyne},
journal={Monthly Notices of the Royal Astronomical Society},
year={2017},
volume={471},
pages={857-876}
}
• P. Freire, +9 authors A. Lyne
• Published 15 June 2017
• Physics
• Monthly Notices of the Royal Astronomical Society
This paper is the second in a series where we report the results of the long-term timing of the millisecond pulsars (MSPs) in 47 Tucanae with the Parkes 64-m radio telescope. We obtain improved timing parameters that provide additional information for studies of the cluster dynamics: a) the pulsar proper motions yield an estimate of the proper motion of the cluster as a whole ($\mu_{\alpha}\, = \, 5.00\, \pm \, 0.14\, \rm mas \, yr^{-1}$, $\mu_{\delta}\, = \, -2.84\, \pm \, 0.12\, \rm mas \, yr… Expand #### Figures and Tables from this paper Long-term observations of pulsars in the globular clusters 47 Tucanae and M15 • A. Ridolfi, +15 authors N. Wex • Physics • Proceedings of the International Astronomical Union • 2017 Abstract Multi-decade observing campaigns of the globular clusters 47 Tucanae and M15 have led to an outstanding number of discoveries. Here, we report on the latest results of the long-termExpand A Dense Companion to the Short-period Millisecond Pulsar Binary PSR J0636+5128 • Physics • The Astrophysical Journal • 2018 PSR J0636+5128 is a millisecond pulsar in one of the most compact pulsar binaries known, with a 96\,min orbital period. The pulsar mass function suggests a very low-mass companion, similar to thatExpand Using long-term millisecond pulsar timing to obtain physical characteristics of the bulge globular cluster Terzan 5 Over the past decade the discovery of three unique stellar populations and a large number of confirmed pulsars within the globular cluster Terzan 5 has raised questions over its classification. UsingExpand Discovery and Timing of Pulsars in the Globular Cluster M13 with FAST We report the discovery of a binary millisecond pulsar (namely PSR J1641+3627F or M13F) in the globular cluster M13 (NGC 6205) and timing solutions of M13A to F using observations made with theExpand Discovery of Millisecond Pulsars in the Globular Cluster Omega Centauri The globular cluster Omega Centauri is the most massive and luminous cluster in the Galaxy. The$\gamma$-ray source FL8Y J1326.7$-$4729 is coincident with the core of the cluster, leading toExpand Upgraded Giant Metrewave Radio Telescope timing of NGC 1851A: a possible millisecond pulsar - neutron star system. • Medicine, Physics • Monthly notices of the Royal Astronomical Society • 2019 1 yr of upgraded Giant Metrewave Radio Telescope timing measurements of PSR J0514-4002A, a 4.99-ms pulsar in a 18.8-d eccentric orbit with a massive companion located in the globular cluster NGC 1851, raise the possibility that the companion is also a neutron star. Expand High-precision pulsar timing and spin frequency second derivatives • Physics • 2018 We investigate the impact of intrinsic, kinematic and gravitational effects on high precision pulsar timing. We present an analytical derivation and a numerical computation of the impact of theseExpand On the vanishing orbital X-ray variability of the eclipsing binary millisecond pulsar 47 Tuc W • Physics • 2020 Redback millisecond pulsars (MSPs) typically show pronounced orbital variability in their X-ray emission due to our changing view of the intrabinary shock (IBS) between the pulsar wind and stellarExpand The dynamics of Galactic centre pulsars: constraining pulsar distances and intrinsic spin-down Through high-precision radio timing observations, we show that five recycled pulsars in the direction of the Galactic Centre (GC) have anomalous spin period time derivative ($\dot P$) measurements --Expand An Extremely Low-mass He White Dwarf Orbiting the Millisecond Pulsar J1342+2822B in the Globular Cluster M3 • Physics • The Astrophysical Journal • 2019 We report on the discovery of the companion star to the millisecond pulsar J1342+2822B in the globular cluster M3. We exploited a combination of near-ultraviolet and optical observations acquiredExpand #### References SHOWING 1-10 OF 67 REFERENCES Further results from the timing of the millisecond pulsars in 47 Tucanae We have been observing the millisecond pulsars in the globular cluster 47 Tucanae (47 Tuc) at the Parkes radio telescope since 1999 August with threefold higher time-resolution than hithertoExpand Discovery of two new pulsars in 47 Tucanae (NGC 104) • Physics • 2016 We report the discovery of two new millisecond pulsars (PSRs J0024$-$7204aa and J0024$-\$7204ab) in the globular cluster 47\,Tucanae (NGC 104). Our results bring the total number of pulsars inExpand
Timing the millisecond pulsars in 47 Tucanae
In the last ten years, 20 millisecond pulsars have been discovered in the globular cluster 47 Tucanae. Hitherto, only three of these pulsars had published timing solutions. Here we improve upon theseExpand
Timing of Millisecond Pulsars in NGC 6752. II. Proper Motions of the Pulsars in the Cluster Outskirts
Exploiting a 5 year span of data, we present improved timing solutions for the five millisecond pulsars known in the globular cluster NGC 6752. These include proper-motion determinations for the twoExpand
Long-term observations of the pulsars in 47 Tucanae – I. A study of four elusive binary systems
For the past couple of decades, the Parkes radio telescope has been regularly observing the millisecond pulsars in 47 Tucanae (47 Tuc). This long-term timing programme was designed to address a wideExpand
A Millisecond Pulsar Optical Counterpart with Large-Amplitude Variability in the Globular Cluster 47 Tucanae
• Physics
• 2002
Using extensive Hubble Space Telescope imaging, combined with Chandra X-ray and Parkes radio data, we have detected the optical binary companion to a second millisecond pulsar (MSP) in the globularExpand
Using long-term millisecond pulsar timing to obtain physical characteristics of the bulge globular cluster Terzan 5
Over the past decade the discovery of three unique stellar populations and a large number of confirmed pulsars within the globular cluster Terzan 5 has raised questions over its classification. UsingExpand
Observations of 20 Millisecond Pulsars in 47 Tucanae at 20 Centimeters
• Physics
• 1999
We have used a new observing system on the Parkes radio telescope to carry out a series of pulsar observations of the globular cluster 47 Tucanae at 20 cm wavelength. We detected all 11 previouslyExpand
Optical Detection of a Variable Millisecond Pulsar Companion in 47 Tucanae
Using results from radio and X-ray observations of millisecond pulsars in 47 Tucanae, and extensive Hubble Space Telescope U, V, and I imaging of the globular cluster core, we have derived a commonExpand
Pulsars as probes of newtonian dynamical systems
• E. Phinney
• Physics
• Philosophical Transactions of the Royal Society of London. Series A: Physical and Engineering Sciences
• 1992
The orbits of binary pulsars in the authors' own Galaxy show evidence for the fluctuations which the fluctuation-dissipation theorem implies should occur during the dissipative tidal circularization of orbits, and newtonian dynamical effects may soon add irrefutable confirmation to recent observations suggesting that some pulsars are surrounded by planetary systems similar to their own. Expand