Timing the millisecond pulsars in 47 Tucanae
arXiv:astro-ph/0103372 · doi:10.1046/j.1365-8711.2001.04493.x
Abstract
In the last 10 years 20 millisecond pulsars have been discovered in the globular cluster 47 Tucanae. Hitherto, only 3 of these had published timing solutions. Here we improve upon these 3 and present 12 new solutions. These measurements can be used to determine a variety of physical properties of the pulsars and of the cluster. The 15 pulsars have positions determined with typical uncertianties of only a few milliarcsec and they are all located within 1.2 arcmin of the cluster centre. We have also measured the proper motions of 5 of the pulsars, which are consistent with the proper motion of 47 Tuc based on Hipparcos data. The period derivatives measured for many of the pulsars are dominated by the dynamical effects of the cluster gravitational field, and are used to constrain the surface mass density of the cluster. All pulsars have characteristic ages T > 170 Myr and magnetic fields B < 2.4e9 Gauss, and the average T > 1 Gyr. We have measured the rate of advance of periastron for the binary pulsar J0024-7204H, implying a total system mass 1.4+-0.8 solar masses.
17 pages, 11 included figures, accepted for publication in MNRAS
References in corpus (1)
Cited by in corpus (63)
- An Overview of the Performance and Scientific Results from the Chandra X-Ray Observatory (CXO)
- Tempo2, a new pulsar timing package. II: The timing model and precision estimates
- Production of Intermediate-Mass Black Holes in Globular Clusters
- Science with ASKAP - the Australian Square Kilometre Array Pathfinder
- Observational evidence for intermediate-mass black holes
- A Deep Chandra Survey of the Globular Cluster 47 Tucanae: Catalog of Point Sources
- The Evolution of Binary Fractions in Globular Clusters
- An intermediate-mass black hole in the centre of the globular cluster 47 Tucanae
- Eight New Millisecond Pulsars in NGC 6440 and NGC 6441
- Relativistic Binaries in Globular Clusters
- Chandra X-Ray Observations of Nineteen Millisecond Pulsars in the Globular Cluster 47 Tucanae
- Long-term observations of the pulsars in 47 Tucanae - II. Proper motions, accelerations and jerks
- High-Energy Emission From Millisecond Pulsars
- On the capture of dark matter by neutron stars
- Chandra Study of a Complete Sample of Millisecond Pulsars in 47Tuc and NGC6397
- An Extensive Census of HST Counterparts to Chandra X-ray Sources in the Globular Cluster 47 Tucanae. I. Astrometry and Photometry
- Optical Identification of Multiple Faint X-ray Sources in the Globular Cluster NGC 6752: Evidence for Numerous Cataclysmic Variables
- Using long-term millisecond pulsar timing to obtain physical characteristics of the bulge globular cluster Terzan 5
- Blue Stragglers, Young White Dwarfs and UV-excess stars in the core of 47 Tuc
- An X-ray Variable Millisecond Pulsar in the Globular Cluster 47 Tucanae: Closing the Link to Low Mass X-ray Binaries
- An Extensive Census of HST Counterparts to Chandra X-ray Sources in the Globular Cluster 47 Tucanae. II. Time Series and Analysis
- Identification of A Transient Neutron Star in Quiescence in the Globular Cluster NGC 5139
- Young Radio Pulsars in Galactic Globular Clusters
- Monte Carlo Simulations of Star Clusters - VII. The globular cluster 47 Tuc
- Long-term observations of the pulsars in 47 Tucanae. I. A study of four elusive binary systems
- GMRT Discovery of A Millisecond Pulsar in a Very Eccentric Binary System
- Constraints on the acceleration of the solar system from high-precision timing
- Mass Segregation in Globular Clusters
- Optical Detection of a Variable Millisecond Pulsar Companion in 47 Tucanae
- Systematic and Stochastic Variations in Pulsar Dispersion Measures
- The Gamma-Ray Pulsar Population of Globular Clusters: Implications for the GeV Excess
- A Millisecond Pulsar Optical Counterpart with Large-Amplitude Variability in the Globular Cluster 47 Tucanae
- GBT Discovery of Two Binary Millisecond Pulsars in the Globular Cluster M30
- Discovery of Two New Pulsars in 47 Tucanae (NGC 104)
- Internal gas models and central black hole in 47 Tucanae using millisecond pulsars
- Chandra studies of the globular cluster 47 Tucanae: A deeper X-ray source catalogue, five new X-ray counterparts to millisecond radio pulsars, and new constraints to r-mode instability window
- Disrupted Globular Clusters and the Gamma-Ray Excess in the Galactic Centre
- Ejection of globular cluster interstellar media through ionization by white dwarfs
- Three Additional Quiescent Low-Mass X-ray Binary Candidates in 47 Tucanae
- The Origin of Gamma-Rays from Globular Clusters
- Discovery and timing of pulsars in the globular cluster M13 with FAST
- A Census of X-ray Millisecond Pulsars in Globular Clusters
- Detection of a Quiescent Low Mass X-Ray Binary Companion in 47 Tucanae
- A Deep Chandra X-ray Observatory Study of the Millisecond Pulsar Population in the Globular Cluster Terzan 5
- The radio luminosity distribution of pulsars in 47 Tucanae
- On the Origin of X-ray Emission From Millisecond Pulsars in 47 Tuc
- Variability of Nineteen Millisecond Pulsars in 47 Tucanae with CHANDRA/HRC-S
- Timing of millisecond pulsars in NGC 6752 - II. Proper motions of the pulsars in the cluster outskirts
- The Pulsar Population in Globular Clusters and in the Galaxy
- Relativistic Binaries in Globular Clusters
- Determination of the orbital parameters of binary pulsars
- A ground-based proper motion study of twelve nearby Globular Clusters
- Millisecond Pulsars as Probes of Mass Segregation in the Galactic Center
- Timing of Pulsars in the Globular Cluster Omega Centauri
- A new pulsar candidate in 47 Tucanae discovered with MeerKAT imaging
- Detection of IMBHs from microlensing in globular clusters
- Wide Bandwidth Observations of Pulsars C, D and J in 47 Tucanae
- Modeling Gas Evacuation Mechanisms in Present-Day Globular Clusters: Stellar Winds from Evolved Stars and Pulsar Heating
- How the dynamical properties of globular clusters impact their -ray and X-ray emission
- Mining the time axis with TRON. I. Millisecond pulsars in Omega Centauri, Terzan 5 and 47 Tucanae detected through MeerKAT interferometric imaging
- Detection of IMBHs from microlensing in globular clusters
- Exploring the crowded central region of 10 Galactic globular clusters using EMCCDs. Variable star searches and new discoveries
- PSR J00247204ai: a massive, eccentric binary system in the globular cluster 47 Tucanae