TRAPUM discovery of thirteen new pulsars in NGC 1851 using MeerKAT

Abstract

We report the discovery of 13 new pulsars in the globular cluster NGC 1851 by the TRAPUM Large Survey Project using the MeerKAT radio telescope. The discoveries consist of six isolated millisecond pulsars (MSPs) and seven binary pulsars, of which six are MSPs and one is mildly recycled. For all the pulsars, we present the basic kinematic, astrometric, and orbital parameters, where applicable, as well as their polarimetric properties, when these are measurable. Two of the binary MSPs (PSR J0514-4002D and PSR J0514-4002E) are in wide and extremely eccentric (e > 0.7) orbits with a heavy white dwarf and a neutron star as their companion, respectively. With these discoveries, NGC 1851 is now tied with M28 as the cluster with the third largest number of known pulsars (14). Its pulsar population shows remarkable similarities with that of M28, Terzan 5 and other clusters with comparable structural parameters. The newly-found pulsars are all located in the innermost regions of NGC 1851 and will likely enable, among other things, detailed studies of the cluster structure and dynamics.

12 pages, 6 figures, 3 tables. Accepted for publication in Astronomy & Astrophysics

References in corpus (21)

• PSRCHIVE and PSRFITS An Open Approach to Radio Pulsar Data Storage and Analysis
• The Five-Hundred-Meter Aperture Spherical Radio Telescope (FAST) Project
• Accurate distances to Galactic globular clusters through a combination of Gaia EDR3, HST and literature data
• The MeerKAT Telescope as a Pulsar Facility: System verification and early science results from MeerTime
• Measurement of Orbital Decay in the Double Neutron Star Binary PSR B2127+11C
• Optimal periodicity searching: Revisiting the Fast Folding Algorithm for large-scale pulsar surveys
• Eight new millisecond pulsars from the first MeerKAT globular cluster census
• FAST Globular Cluster Pulsar Survey: Twenty-Four Pulsars Discovered in Fifteen Globular Clusters
• IQRM: real-time adaptive RFI masking for radio transient and pulsar searches
• The Thousand-Pulsar-Array programme on MeerKAT IV: Polarisation properties of young, energetic pulsars
• Wide field beamformed observation with MeerKAT
• Discovery and timing of pulsars in the globular cluster M13 with FAST
• The FAST discovery of an Eclipsing Binary Millisecond Pulsar in the Globular Cluster M92 (NGC 6341)
• Discovery of Millisecond Pulsars in the Globular Cluster Omega Centauri
• Evidence of non-luminous matter in the center of M62
• Constraints from globular cluster pulsars on the magnetic field in the Galactic halo
• Giant pulses from J1823-3021A observed with the MeerKAT telescope
• Three Pulsars Discovered by FAST in the Globular Cluster NGC 6517 with a Pulsar Candidate Sifting Code Based on Dispersion Measure to Signal-to-Noise Ratio Plots
• Coherent Search for Binary Pulsars across all Five Keplerian Parameters in Radio Observations using the template-bank algorithm
• Twenty Years of Searching for (and Finding) Globular Cluster Pulsars
• An Eclipsing Black Widow Pulsar in NGC 6712

Cited by in corpus (23)

• A pulsar in a binary with a compact object in the mass gap between neutron stars and black holes
• Dark photon superradiance: Electrodynamics and multimessenger signals
• Discovery and timing of ten new millisecond pulsars in the globular cluster Terzan 5
• MeerKAT discovery of 13 new pulsars in Omega Centauri
• PulsarX: a new pulsar searching package -I. A high performance folding program for pulsar surveys
• Empirical measurement of the dynamical ages of three globular clusters and some considerations on the use of the dynamical clock
• NE2001p: A Native Python Implementation of the NE2001 Galactic Electron Density Model
• The Southern-sky MWA Rapid Two-metre (SMART) pulsar survey -- II. Survey status, pulsar census, and first pulsar discoveries
• Missing for 20 years: MeerKAT re-detects the elusive binary pulsar M30B
• Discovery and Timing of Millisecond Pulsars in the Globular Cluster M5 (NGC 5904) with FAST and Arecibo
• The FAST Globular Cluster Pulsar Survey (GC FANS)
• A young white dwarf orbiting PSR J1835-3259B in the bulge globular cluster NGC 6652
• A MeerKAT look at the polarization of 47 Tucanae pulsars: magnetic field implications
• Probe and Prejudice: Classification of compact objects and model comparison using EOS knowledge
• The TRAPUM Small Magellanic Cloud pulsar survey with MeerKAT: I. Discovery of seven new pulsars and two Pulsar Wind Nebula associations
• NE2025: An Updated Electron Density Model for the Galactic Interstellar Medium
• The TRAPUM Large Magellanic Cloud pulsar survey with MeerKAT I: Survey setup and first seven pulsar discoveries
• The Analyses of Globular Clusters Pulsars and Their Detection Efficiency
• NGC 1851A: Revealing an ongoing three-body encounter in a dense globular cluster
• A study of the light bending phenomenon under full general relativity for a pulsar in a binary with a Schwarzschild black hole
• The TRAPUM Small Magellanic Cloud pulsar survey with MeerKAT -- II. Nine new radio timing solutions and glitches from young pulsars
• Fast Rotating Blue Straggler Stars in the globular cluster NGC 1851
• PSR J0024$-$7204ai: a massive, eccentric binary system in the globular cluster 47 Tucanae