Anti-glitches in accreting pulsars from superfluid vortex avalanches
arXiv:2205.05896 · doi:10.1093/mnras/stac1358
Abstract
Three sudden spin-down events, termed `anti-glitches', were recently discovered in the accreting pulsar NGC 300 ULX-1 by the \textit{Neutron Star Interior Composition Explorer} (NICER) mission. Unlike previous anti-glitches detected in decelerating magnetars, these are the first anti-glitches recorded in an accelerating pulsar. One standard theory is that pulsar spin-up glitches are caused by avalanches of collectively unpinning vortices that transfer angular momentum from the superfluid interior to the crust of a neutron star. Here we test whether vortex avalanches are also consistent with the anti-glitches in NGC 300 ULX-1, with the angular momentum transfer reversed. We perform -body simulations of up to pinned vortices in two dimensions in secularly accelerating and decelerating containers. Vortex avalanches routinely occur in both scenarios, propagating inwards and outwards respectively. The implications for observables, such as size and waiting time statistics, are considered briefly.
arXiv commentMNRAS accepted, 13 pages, 10 figures
References in corpus (45)
- An Ultraluminous X-ray Source Powered by An Accreting Neutron Star
- Observations of Accreting Pulsars
- Ultraluminous X-Ray Sources
- Unifying the observational diversity of isolated neutron stars via magneto-thermal evolution models
- Models of Pulsar Glitches
- Neutron star magnetic field evolution, crust movement and glitches
- Discovery of pulsations from NGC 300 ULX1 and its fast period evolution
- A Major SGR-like Outburst and Rotation Glitch in the No-Longer-So-Anomalous X-ray Pulsar 1E 2259+586
- Magnetars: Properties, Origin and Evolution
- Locking of the Rotation of Disk-Accreting Magnetized Stars
- Magnetohydrodynamics of superfluid and superconducting neutron star cores
- 16 Years of RXTE Monitoring of Five Anomalous X-ray Pulsars
- Predicting the Starquakes in PSR J0537-6910
- Breaking stress of neutron star crust
- An Anti-Glitch in a Magnetar
- Burial of the polar magnetic field of an accreting neutron star. I. Self-consistent analytic and numerical equilibria
- Glitches in Southern Pulsars
- Transitions between turbulent and laminar superfluid vorticity states in the outer core of a neutron star
- ULXs: Neutron Stars vs Black Holes
- Rotating Superfluid Turbulence
- Superfluid neutron star turbulence
- Gross-Pitaevskii model of pulsar glitches
- Mesoscopic pinning forces in neutron star crusts
- Numerical Studies of Quantum Turbulence
- Unpinning triggers for superfluid vortex avalanches
- Quiescent thermal emission from neutron stars in LMXBs
- Pulsar glitch recovery and the superfluidity coefficients of bulk nuclear matter
- The Effect of Quantized Magnetic Flux Lines on the Dynamics of Superfluid Neutron Star Cores
- All at once: transient pulsations, spin down and a glitch from the Pulsating Ultraluminous X-ray Source M82 X-2
- Anti-glitches in the Ultraluminous Accreting Pulsar NGC 300 ULX-1 Observed with NICER
- Stability of interlinked neutron vortex and proton flux tube arrays in a neutron star: equilibrium configurations
- Vortex pinning in the superfluid core of neutron stars and the rise of pulsar glitches
- Size-waiting-time correlations in pulsar glitches
- Stability of interlinked neutron vortex and proton flux tube arrays in a neutron star. II. Far-from-equilibrium dynamics
- Derivation of the Biot-Savart equation from the Nonlinear Schrödinger equation
- Pulsar glitch detection with a hidden Markov model
- Discovery of a Glitch in the Accretion Powered Pulsar SXP 1062
- Chandra Detection of SN 2010da Four Months After Outburst: Evidence for a Supergiant X-ray Binary in NGC 300
- A radiatively-quiet glitch and anti-glitch in the magnetar 1E 2259+586
- Turbulent, pinned superfluids in neutron stars and pulsar glitch recoveries
- Pinned vortex hopping in a neutron star crust
- A simple mechanism for the anti-glitch observed in magnetar 1E 2259+586
- Simulating pulsar glitches: an -body solver for superfluid vortex motion in two dimensions
- Critical velocity of a finite-temperature Bose gas
- Interpreting the AXP 1E 2259+586 antiglitch as a change in internal magnetization
Cited by in corpus (7)
- Discovery of the first anti-glitch event in the rotation-powered pulsar PSR B0540-69
- Stability of interlinked neutron vortex and proton flux-tube arrays in a neutron star -- III. Proton feedback
- Neutron-superfluid vortices and proton-superconductor flux tubes: Development of a minimal model for pulsar glitches
- Continuous gravitational waves from trapped magnetar ejecta and the connection to glitches and antiglitches
- Persistent gravitational radiation from glitching pulsars. II. Updated scaling with vortex number
- Anomalous Energy Injection in the Gross-Pitaevskii Framework for Turbulence in Neutron Star Glitches
- Vortex Retention Mediated Turbulent Transitions in Self-Gravitating Bosonic and Axionic Condensates