The Relativistic Binary Programme on MeerKAT: Science objectives and first results

Abstract

We describe the ongoing Relativistic Binary programme (RelBin), a part of the MeerTime large survey project with the MeerKAT radio telescope. RelBin is primarily focused on observations of relativistic effects in binary pulsars to enable measurements of neutron star masses and tests of theories of gravity. We selected 25 pulsars as an initial high priority list of targets based on their characteristics and observational history with other telescopes. In this paper, we provide an outline of the programme, present polarisation calibrated pulse profiles for all selected pulsars as a reference catalogue along with updated dispersion measures. We report Faraday rotation measures for 24 pulsars, twelve of which have been measured for the first time. More than a third of our selected pulsars show a flat position angle swing confirming earlier observations. We demonstrate the ability of the Rotating Vector Model (RVM), fitted here to seven binary pulsars, including the Double Pulsar (PSR J0737$-$3039A), to obtain information about the orbital inclination angle. We present a high time resolution light curve of the eclipse of PSR J0737$-$3039A by the companion's magnetosphere, a high-phase resolution position angle swing for PSR J1141$-$6545, an improved detection of the Shapiro delay of PSR J1811$-$2405, and pulse scattering measurements for PSRs J1227$-$6208, J1757$-$1854, and J1811$-$1736. Finally, we demonstrate that timing observations with MeerKAT improve on existing data sets by a factor of, typically, 2-3, sometimes by an order of magnitude.

arXiv comment21 pages 16 figures, published in MNRAS (replaced earlier submission after small changes added in proofs)

References in corpus (82)

• emcee: The MCMC Hammer
• Shapiro delay measurement of a two solar mass neutron star
• A Massive Pulsar in a Compact Relativistic Binary
• The ATNF Pulsar Catalogue
• Relativistic Shapiro delay measurements of an extremely massive millisecond pulsar
• The ATNF Pulsar Catalogue
• Masses, Radii, and Equation of State of Neutron Stars
• Tests of general relativity from timing the double pulsar
• PSRCHIVE and PSRFITS An Open Approach to Radio Pulsar Data Storage and Analysis
• A Double-Pulsar System - A Rare Laboratory for Relativistic Gravity and Plasma Physics
• Formation of Double Neutron Star Systems
• Tensor-scalar gravity and binary-pulsar experiments
• DSPSR: Digital Signal Processing Software for Pulsar Astronomy
• The relativistic pulsar-white dwarf binary PSR J1738+0333 II. The most stringent test of scalar-tensor gravity
• The High Time Resolution Universe Pulsar Survey I: System configuration and initial discoveries
• The characteristics of millisecond pulsar emission: I. Spectra, pulse shapes and the beaming fraction
• Emission Beam Geometry of Selected Pulsars Derived from Average Pulse Polarization Data
• Relativistic Measurements from Timing the Binary Pulsar PSR B1913+16
• Frame dragging and other precessional effects in black hole-pulsar binaries
• Determination of the geometry of the PSR B1913+16 system by geodetic precession
• Eight New Millisecond Pulsars in NGC 6440 and NGC 6441
• Studies of the Relativistic Binary Pulsar PSR B1534+12: I. Timing Analysis
• A test of general relativity from the three-dimensional orbital geometry of a binary pulsar
• The MeerKAT Telescope as a Pulsar Facility: System verification and early science results from MeerTime
• The Parkes Multibeam Pulsar Survey: V. Finding binary and millisecond pulsars
• Testing the universality of free fall by tracking a pulsar in a stellar triple system
• Revival of the magnetar PSR J1622-4950: observations with MeerKAT, Parkes, XMM-Newton, Swift, Chandra, and NuSTAR
• PSRCHIVE and PSRFITS: Definition of the Stokes Parameters and Instrumental Basis Conventions
• Prospects for High-Precision Pulsar Timing with the New Effelsberg PSRIX Backend
• PSR J1756$-$2251: a pulsar with a low-mass neutron star companion
• The Parkes Pulsar Timing Array Project: Second data release
• The 1.28 GHz MeerKAT DEEP2 Image
• Coherently Dedispersed Polarimetry of Millisecond Pulsars
• Measurement of gravitational spin-orbit coupling in a binary pulsar system
• The millisecond pulsar mass distribution: Evidence for bimodality and constraints on the maximum neutron star mass
• The High Time Resolution Universe Pulsar Survey - XIII. PSR J1757-1854, the most accelerated binary pulsar
• The characteristics of millisecond pulsar emission: II. Polarimetry
• Discovery of 28 pulsars using new techniques for sorting pulsar candidates
• The orthometric parameterisation of the Shapiro delay and an improved test of general relativity with binary pulsars
• Parkes radio searches of Fermi gamma-ray sources and millisecond pulsar discoveries
• Radio emission from a pulsar's magnetic pole revealed by general relativity
• The double pulsar: evidence for neutron star formation without an iron core-collapse supernova
• Discovery of Five Binary Radio Pulsars
• Radio Astronomical Polarimetry and High-Precision Pulsar Timing
• Magnetospheric Eclipses in the Binary Pulsar J0737-3039
• On the mean profiles of radio pulsars I: Theory of the propagation effects
• Scattering analysis of LOFAR pulsar observations
• Lense-Thirring frame dragging induced by a fast-rotating white dwarf in a binary pulsar system
• An improved test of the strong equivalence principle with the pulsar in a triple star system
• The binary pulsar PSR J1811-1736: evidence of a low amplitude supernova kick
• Prospects for accurate distance measurements of pulsars with the SKA: enabling fundamental physics
• PSR J1930-1852: a pulsar in the widest known orbit around another neutron star
• The Double Pulsar System J0737-3039: Modulation of A by B at eclipse
• Constraining the dense matter equation-of-state with radio pulsars
• Observations and Modelling of Relativistic Spin Precession in PSR J1141-6545
• A precise mass measurement of the intermediate-mass binary pulsar PSR J1802-2124
• A New Method for Obtaining Binary Pulsar Distances and its Implications for Tests of General Relativity
• Discovery of Two Relativistic Neutron Star-White Dwarf Binaries
• On the beam properties of radio pulsars with interpulse emission
• The Thousand-Pulsar-Array programme on MeerKAT I: Science objectives and first results
• Modelling annual and orbital variations in the scintillation of the relativistic binary PSR J1141$-$6545
• The Formation of the Double Pulsar PSR J0737-3039A/B
• Discovery of Five Recycled Pulsars in a High Galactic Latitude Survey
• Interstellar Scintillation of the Double Pulsar J0737$-$3039
• Wide radio beams from gamma-ray pulsars
• A timing formula for main-sequence star binary pulsars
• Polarisation profiles of southern pulsars at 3.1 GHz
• The Parkes multibeam pulsar survey: VII. Timing of four millisecond pulsars and the underlying spin period distribution of the Galactic millisecond pulsar population
• A Massive-born Neutron Star with a Massive White Dwarf Companion
• The High Time Resolution Universe Survey - XI. Discovery of five recycled pulsars and the optical detectability of survey white dwarf companions
• Orientations of Spin and Magnetic Dipole Axes of Pulsars in the J0737--3039 Binary Based on Polarimetry Observations at the Green Bank Telescope
• Future measurements of the Lense-Thirring effect in the Double Pulsar
• The Scintillation Velocity of the Relativistic Binary Pulsar PSR J1141-6545
• Fermi LAT pulsed detection of PSR J0737-3039A in the double pulsar system
• Shapiro delay in PSR~J1811$-$2405
• The Double Pulsar Eclipses I: Phenomenology and Multi-frequency Analysis
• On the mean profiles of radio pulsars II: Reconstruction of complex pulsar light-curves and other new propagation effects
• PSR J1618-3921: a recycled pulsar in an eccentric orbit
• Relativistic spin precession in the binary PSR J1141$-$6545
• Optical Detection of Two Intermediate Mass Binary Pulsar Companions
• Limits on the Mass, Velocity and Orbit of PSR J1933$-$6211
• Changes in Polarization Position Angle across the Eclipse in the Double Pulsar System

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• Strong-field Gravity Tests with the Double Pulsar
• The MeerKAT Pulsar Timing Array: First Data Release
• The Parkes pulsar timing array second data release: Timing analysis
• The MeerTime Pulsar Timing Array -- A Census of Emission Properties and Timing Potential
• Closing a spontaneous-scalarization window with binary pulsars
• PSR J2222--0137. I. Improved physical parameters for the system
• The MeerKAT Pulsar Timing Array: The $4.5$-year data release and the noise and stochastic signals of the millisecond pulsar population
• Searches for Shapiro delay in seven binary pulsars using the MeerKAT telescope
• The eccentric millisecond pulsar, PSR J0955$-$6150 I: Pulse profile analysis, mass measurements and constraints on binary evolution
• The High Time Resolution Universe Pulsar Survey -- XVII. PSR J1325-6253, a low eccentricity double neutron star system from an ultra-stripped supernova
• The FAST Galactic Plane Pulsar Snapshot survey: VIII. 116 binary pulsars
• Gravitational signal propagation in the Double Pulsar studied with the MeerKAT telescope
• Revisiting the Galactic Double Neutron Star merger and LIGO detection rates
• Flux density monitoring of 89 millisecond pulsars with MeerKAT
• Interstellar scintillation and polarization of PSR B0656+14 in the Monogem Ring
• PSR~J1910$-$5959A: A rare gravitational laboratory for testing white dwarf models
• Discoveries and Timing of Pulsars in NGC 6440
• New constraints on the kinematic, relativistic and evolutionary properties of the PSR J1757$-$1854 double neutron star system
• Mass measurements and 3D orbital geometry of PSR J1933$-$6211
• Discovery and Timing of Millisecond Pulsars with the Arecibo 327 MHz Drift-Scan Survey
• A MeerKAT view of the double pulsar eclipses -- Geodetic precession of pulsar B and system geometry
• New limits on the local Lorentz invariance violation of gravity in the Standard-Model Extension with pulsars
• Improving pulsar-timing solutions through dynamic pulse fitting
• Equation-of-state-informed pulse profile modeling
• Associations Between Scattering Screens and Interstellar Medium Filaments
• The impact of the spin-orbit misalignment and of the spin of B on the Lense-Thrirring orbital precessions of the Double Pulsar PSR J0737-3039A/B
• PSR J1227$-$6208 and its massive white dwarf companion: pulsar emission analysis, timing update and mass measurements
• Triple trouble with PSR J1618-3921: Mass measurements and orbital dynamics of an eccentric millisecond pulsar
• Long-term timing of the relativistic binary PSR J1906+0746
• Timing observations of three Galactic millisecond pulsars
• Radio timing constraints on the mass of the binary pulsar PSR J1528-3146