Long-term statistics of pulsar glitches triggered by a Brownian stress accumulation process
arXiv:2004.00168 · doi:10.1093/mnras/staa935
Abstract
A microphysics-agnostic meta-model of rotational glitches in rotation-powered pulsars is developed, wherein the globally averaged internal stress accumulates as a Brownian process between glitches, and a glitch is triggered once a critical threshold is surmounted. Precise, falsifiable predictions are made regarding long-term event statistics in individual pulsars. For example, the Spearman cross-correlation coefficient between the size of a glitch and the waiting time until the next glitch should exceed 0.25 in all pulsars. Among the six pulsars with the most recorded glitches, PSR J05376910 and PSR J08354510 are consistent with the predictions of the meta-model, while PSR J17403015 and PSR J06311036 are not. PSR J05342200 and PSR J13416220 are only consistent with the meta-model, if there exists an undetected population of small glitches with small waiting times, which we do not resolve. The results are compared with a state-dependent Poisson process, another microphysics-agnostic meta-model in the literature. The results are also applied briefly to recent pulse-to-pulse observations of PSRJ08354510, which appear to reveal evidence for a negative fluctuation in rotation frequency just prior to the 2016 glitch.
arXiv comment10 pages, 6 figures. Accepted for publication in MNRAS
References in corpus (40)
- A study of 315 glitches in the rotation of 102 pulsars
- Pulsar Constraints on Neutron Star Structure and Equation of State
- The Breaking Strain of Neutron Star Crust and Gravitational Waves
- Models of Pulsar Glitches
- 45 Years of Rotation of the Crab Pulsar
- Pulsar glitches: The crust is not enough
- Assessing the Role of Spin Noise in the Precision Timing of Millisecond Pulsars
- Detection of 107 glitches in 36 southern pulsars
- Avalanche dynamics of radio pulsar glitches
- Predicting the Starquakes in PSR J0537-6910
- Breaking stress of neutron star crust
- Timing of young radio pulsars I: Timing noise, periodic modulation and proper motion
- Pulsar spin-down: the glitch-dominated rotation of PSR J0537-6910
- Gross-Pitaevskii model of pulsar glitches
- Are pulsar glitches triggered by a superfluid two-stream instability?
- Pulsar timing noise from superfluid turbulence
- A hydrodynamical trigger mechanism for pulsar glitches
- The UTMOST pulsar timing programme II: Timing noise across the pulsar population
- 30 Glitches in slow pulsars
- Superfluid turbulence and pulsar glitch statistics
- Pulsar Braking Indices, Glitches and Energy Dissipation In Neutron Stars
- Neutron star glitches have a substantial minimum size
- Pulsar glitch recovery and the superfluidity coefficients of bulk nuclear matter
- Simulations of Glitches in Isolated Pulsars
- Order out of Randomness : Self-Organization Processes in Astrophysics
- Kelvin Helmholtz Instability and Circulation Transfer at an Isotropic-Anisotropic Superfluid Interface in a Neutron Star
- Glitch time series and size distributions in eight prolific pulsars
- Gravitational Radiation from Hydrodynamic Turbulence in a Differentially Rotating Neutron Star
- Nonlinear interglitch dynamics, the braking index of the Vela pulsar and the time to the next glitch
- Size-waiting-time correlations in pulsar glitches
- The glitches and rotational history of the highly energetic young pulsar PSR J05376910
- Characterising the rotational irregularities of the Vela pulsar from 21 yr of phase-coherent timing
- Nonparametric estimation of the size and waiting time distributions of pulsar glitches
- Efficacy of crustal superfluid neutrons in pulsar glitch models
- Generating quasiperiodic pulsar glitches using a state-dependent Poisson process
- Time-Correlated Structure in Spin Fluctuations in Pulsars
- The effect of non-linear mutual friction on pulsar glitch sizes and rise times
- Autocorrelations in pulsar glitch waiting times and sizes
- On the detection probability of neutron star glitches
- Hydrodynamical instabilities in superfluid neutron stars with background flows between the components
Cited by in corpus (10)
- The impact of glitches on young pulsar rotational evolution
- Mountain formation by repeated, inhomogeneous crustal failure in a neutron star
- Insights into the physics of neutron star interiors from pulsar glitches
- Simulating pulsar glitches: an -body solver for superfluid vortex motion in two dimensions
- An updated glitch rate law inferred from radio pulsars
- Measuring the vortex-nucleus pinning force from pulsar glitch rates
- Probing Ensemble Properties of Vortex-avalanche Pulsar Glitches with a Stochastic Gravitational-Wave Background Search
- Long-term statistics of pulsar glitches due to history-dependent avalanches
- A statistical search for a uniform trigger threshold in solar flares from individual active regions
- Glitches and glitching clusters in rotation-powered pulsars