Timing stability of black widow pulsars

Abstract

We study the timing stability of three black widow pulsars, both in terms of their long-term spin evolution and their shorter-term orbital stability. The erratic timing behaviour and radio eclipses of the first two black widow pulsar systems discovered (PSRs B1957+20 and J2051$-$0827) was assumed to be representative for this class of pulsars. With several new black widow systems added to this population in the last decade, there are now several systems known that do not show these typical orbital variations or radio eclipses. We present timing solutions using 7$-$8 yrs of observations from four of the European Pulsar Timing Array telescopes for PSRs\,J0023+0923, J2214+3000 and J2234+0944, and confirm that two of these systems do not show any significant orbital variability over our observing time span, both in terms of secular or orbital parameters. The third pulsar PSR J0023+0923 shows orbital variability and we discuss the implications for the timing solution. Our results from the long-term timing of these pulsars provide several new or improved parameters compared to earlier works. We discuss our results regarding the stability of these pulsars, and the stability of the class of black widow pulsars in general, in the context of the binary parameters, and discuss the potential of the Roche-lobe filling factor of the companion star being an indicator for stability of these systems.

arXiv commentSubmitted to MNRAS

References in corpus (37)

• TEMPO2, a new pulsar timing package. I: Overview
• The Second Fermi Large Area Telescope Catalog of Gamma-ray Pulsars
• The NANOGrav 11-year Data Set: High-precision timing of 45 Millisecond Pulsars
• A Radio Pulsar/X-ray Binary Link
• High-precision timing of 42 millisecond pulsars with the European Pulsar Timing Array
• Swings between rotation and accretion power in a millisecond binary pulsar
• The International Pulsar Timing Array: First Data Release
• Evidence for a Massive Neutron Star from a Radial-Velocity Study of the Companion to the Black Widow Pulsar PSR B1957+20
• A state change in the low-mass X-ray binary XSS J12270-4859
• Precision Timing Measurements of PSR J1012+5307
• Formation of black widows and redbacks -- two distinct populations of eclipsing binary millisecond pulsars
• Three Millisecond Pulsars in FERMI LAT Unassociated Bright Sources
• Discovery of PSR J1227-4853: A transition from a low-mass X-ray binary to a redback millisecond pulsar
• Discovery of the Optical Counterparts to Four Energetic Fermi Millisecond Pulsars
• Prospects for High-Precision Pulsar Timing with the New Effelsberg PSRIX Backend
• Long-term observations of the pulsars in 47 Tucanae - II. Proper motions, accelerations and jerks
• Surrounded by Spiders! New Black Widows and Redbacks in the Galactic Field
• Orbital Variability in the Eclipsing Pulsar Binary PSR B1957+20
• The bright optical companion to the eclipsing millisecond pulsar in NGC 6397
• LEAP: the large European array for pulsars
• X-Ray Observations of Black Widow Pulsars
• Radio Searches of Fermi LAT Sources and Blind Search Pulsars: The Fermi Pulsar Search Consortium
• PuMaII: A wide band pulsar machine for the WSRT
• The light curve of the companion to PSR B1957+20
• Evidence for gravitational quadrupole moment variations in the companion of PSR J2051-0827
• The Generalized Spectral Kurtosis Estimator
• The gamma-ray millisecond pulsar deathline, revisited - New velocity and distance measurements
• The Low-Frequency Radio Eclipses of the Black Widow Pulsar J1810+1744
• 21-year timing of the black-widow pulsar J2051-0827
• Observations and Modeling of the Companions of Short Period Binary Millisecond Pulsars: Evidence for High-Mass Neutron Stars
• A 350-MHz GBT Survey of 50 Faint Fermi Gamma-ray Sources for Radio Millisecond Pulsars
• Search for transitions between states in redbacks and black widows using seven years of Fermi-LAT observations
• Pulsars probe the low-frequency gravitational sky: Pulsar Timing Arrays basics and recent results
• A Dense Companion to the Short-Period Millisecond Pulsar Binary PSR J0636+5128
• The Orbital Evolution and Proper Motion of PSR J2051-0827
• Timing of PSR J2055+3829, an eclipsing black widow pulsar discovered with the Nançay Radio Telescope
• The Feasibility of Using Black Widow Pulsars in Pulsar Timing Arrays for Gravitational Wave Detection

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• Status Report on Global Pulsar-Timing-Array Efforts to Detect Gravitational Waves
• Irradiated but not eclipsed, the case of PSR J0610-2100
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• Decade Long Timing Study of the Black Widow Millisecond Pulsar J1544+4937
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