Glitch recoveries in radio-pulsars and magnetars

Abstract

Pulsar glitches are sudden increases in the spin frequency of an otherwise steadily spinning down neutron star. These events are thought to represent a direct probe of the dynamics of the superfluid interior of the star. However glitches can differ significantly from one another, not only in size and frequency, but also in the post-glitch response of the star. Some appear as simple steps in frequency, while others also display an increase in spin-down rate after the glitch. Others still show several exponentially relaxing components in the post-glitch recovery. We show that if glitches are indeed due to large scale unpinning of superfluid vortices, the different regions in which this occurs and respective timescales on which they recouple can lead to the various observed signatures. Furthermore we show that this framework naturally accounts for the peculiar relaxations of glitches in Anomalous X-ray Pulsars.

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Cited by in corpus (32)

• Models of Pulsar Glitches
• The glitch activity of neutron stars
• New long-term braking index measurements for glitching pulsars using a glitch-template method
• Mesoscopic pinning forces in neutron star crusts
• The impact of glitches on young pulsar rotational evolution
• Magnetar-like X-ray Bursts from a Rotation Powered Pulsar, PSR J1119-6127
• The enigmatic spin evolution of PSR J0537-6910: r-modes, gravitational waves and the case for continued timing
• Constraints on the symmetry energy from observational probes of the neutron star crust
• The unusual glitch recoveries of the high magnetic field pulsar J1119$-$6127
• Peculiar Glitch of PSR J1119-6127 and Extension of the Vortex Creep Model
• First search for long-duration transient gravitational waves after glitches in the Vela and Crab pulsars
• Nonlinear interglitch dynamics, the braking index of the Vela pulsar and the time to the next glitch
• Observational constraints on neutron star crust-core coupling during glitches
• Modelling pulsar glitches: the hydrodynamics of superfluid vortex avalanches in neutron stars
• Efficacy of crustal superfluid neutrons in pulsar glitch models
• Core and crust contributions in overshooting glitches: the Vela pulsar 2016 glitch
• Turbulent, pinned superfluids in neutron stars and pulsar glitch recoveries
• The effect of non-linear mutual friction on pulsar glitch sizes and rise times
• Pulse profiles and timing of PSR J1757$-$2421
• Discovery of delayed spin-up behavior following two large glitches in the Crab pulsar, and the statistics of such processes
• Prospects for detecting transient quasi-monochromatic gravitational waves from glitching pulsars with current and future detectors
• Faster search for long gravitational-wave transients: GPU implementation of the transient F-statistic
• Hydrodynamic simulations of pulsar glitch recovery
• The effect of superfluid hydrodynamics on pulsar glitch sizes and waiting times
• Properties and observability of glitches and anti-glitches in accreting pulsars
• Pulse profile variability associated with the glitch of PSR J1048$-$5832
• A real-time Automated Glitch Detection Pipeline at Ooty Radio Telescope
• Probing neutron star interiors with pulsar glitches
• On the Relaxation Behaviors of Slow and Classical Glitches: Observational Biases and Their Opposite Recovery Trends
• Long-term statistics of pulsar glitches due to history-dependent avalanches
• The Jodrell Bank Glitch Catalogue: 106 new rotational glitches in 70 pulsars
• Measuring the crust-superfluid coupling time-scale for 105 UTMOST pulsars with a Kalman filter