The Thousand-Pulsar-Array program on MeerKAT -- IX. The time-averaged properties of the observed pulsar population

Abstract

We present the largest single survey to date of average profiles of radio pulsars, observed and processed using the same telescope and data reduction software. Specifically, we present measurements for 1170 pulsars, observed by the Thousand Pulsar Array (TPA) programme at the 64-dish SARAO MeerKAT radio telescope, in a frequency band from 856 to 1712 MHz. We provide rotation measures (RM), dispersion measures, flux densities and polarization properties. The catalogue includes 254 new RMs that substantially increase the total number of known pulsar RMs. Our integration times typically span over 1000 individual rotations per source. We show that the radio (pseudo)luminosity has a strong, shallow dependence on the spin-down energy, proportional to ${\dot{E}}^{0.15\pm 0.04}$, that contradicts some previous proposals of population synthesis studies. In addition, we find a significant correlation between the steepness of the observed flux density spectra and $\dot{E}$, and correlations of the fractional linear polarization with $\dot{E}$, the spectral index, and the pulse width, which we discuss in the context of what is known about pulsar radio emission and how pulsars evolve with time. On the whole, we do not see significant correlations with the estimated surface magnetic field strength, and the correlations with $\dot{E}$ are much stronger than those with the characteristic age. This finding lends support to the suggestion that magnetic dipole braking may not be the dominant factor for the evolution of pulsar rotation over the lifetimes of pulsars. A public data release of the high-fidelity time-averaged pulse profiles in full polarization accompanies our catalogue.

arXiv commentAccepted for publication in MNRAS. 21 pages, 25 figures, 6 Tables

References in corpus (55)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
• The ATNF Pulsar Catalogue
• TEMPO2, a new pulsar timing package. I: Overview
• A New Electron Density Model for Estimation of Pulsar and FRB Distances
• The Second Fermi Large Area Telescope Catalog of Gamma-ray Pulsars
• Birth and Evolution of Isolated Radio Pulsars
• Faraday Rotation Measure Synthesis
• Tempo2, a new pulsar timing package. II: The timing model and precision estimates
• The Velocity Distribution of Isolated Radio Pulsars
• Emission Beam Geometry of Selected Pulsars Derived from Average Pulse Polarization Data
• Pulsar rotation measures and the magnetic structure of our Galaxy
• Spectral properties of 441 radio pulsars
• Ab-initio pulsar magnetosphere: three-dimensional particle-in-cell simulations of oblique pulsars
• The MeerKAT Telescope as a Pulsar Facility: System verification and early science results from MeerTime
• Profile and polarization characteristics of energetic pulsars
• Prospects for High-Precision Pulsar Timing with the New Effelsberg PSRIX Backend
• Pulsar braking and the P-Pdot diagram
• New pulsar rotation measures and the Galactic magnetic field
• PsrPopPy: An open-source package for pulsar population simulations
• Population synthesis of isolated Neutron Stars with magneto--rotational evolution
• Understanding the radio emission geometry of multi-component radio pulsars from retardation and aberration effects
• Profile morphology and polarization of young pulsars
• Radio emission from a pulsar's magnetic pole revealed by general relativity
• A New 1.4GHz Radio Continuum Map of the Sky South of Declination +25 deg
• Radio efficiency of pulsars
• The impact of glitches on young pulsar rotational evolution
• Constraints on viewing geometries from radio observations of $\gamma$-ray-loud pulsars using a novel method
• Dispersion measure variations in a sample of 168 pulsars
• A Fan Beam Model for Radio Pulsars. I. Observational Evidence
• The Thousand-Pulsar-Array programme on MeerKAT I: Science objectives and first results
• Measurements of pulse jitter and single-pulse variability in millisecond pulsars using MeerKAT
• Isolated pulsar spin evolution on the P-Pdot Diagram
• The Thousand-Pulsar-Array programme on MeerKAT: -- VI. Pulse widths of a large and diverse sample of radio pulsars
• The Period-Width relationship for radio pulsars revisited
• The Thousand-Pulsar-Array programme on MeerKAT IV: Polarisation properties of young, energetic pulsars
• Polarisation profiles of southern pulsars at 3.1 GHz
• A transient component in the pulse profile of PSR J0738-4042
• The Thousand-Pulsar-Array programme on MeerKAT -- V. Scattering analysis of single-component pulsars
• The illusion of neutron star magnetic field estimates
• The Galactic population and properties of young, highly-energetic pulsars
• Chandra observations of the old pulsar PSR B1451-68
• Radiation from an off-centred rotating dipole in vacuum
• The Arecibo 430-MHz Intermediate Galactic Latitude Survey: Discovery of Nine Radio Pulsars
• On frequency dependence of pulsar linear polarization
• The Thousand-Pulsar-Array programme on MeerKAT II: observing strategy for pulsar monitoring with subarrays
• Luminosities of radio Pulsars
• The High Time Resolution Universe Pulsar Survey -- XV: completion of the intermediate latitude survey with the discovery and timing of 25 further pulsars
• Luminosity of radio pulsar and its new emission death line
• Hubble Space Telescope observations of the old pulsar PSR J0108-1431
• Pulsar polarimetry with the Parkes Ultra-Wideband receiver
• Linking Long- and Short-Term Emission Variability in Pulsars
• Deep optical observations of unusual neutron star Calvera with the GTC
• Efficiency of Synchrotron Radiation from Rotation-Powered Pulsars
• Towards an X-ray inventory of nearby neutron stars

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