Models of Pulsar Glitches

Abstract

Radio pulsars provide us with some of the most stable clocks in the universe. Nevertheless several pulsars exhibit sudden spin-up events, known as glitches. More than forty years after their first discovery, the exact origin of these phenomena is still open to debate. It is generally thought that they an observational manifestation of a superfluid component in the stellar interior and provide an insight into the dynamics of matter at extreme densities. In recent years there have been several advances on both the theoretical and observational side, that have provided significant steps forward in our understanding of neutron star interior dynamics and possible glitch mechanisms. In this article we review the main glitch models that have been proposed and discuss our understanding, in the light of current observations.

Preprint of an article published in IJMPD 24, issue 3, 2015, 530008, DOI: 10.1142/S0218271815300086. Copyright World Scientific Publishing Company, http://www.worldscinet.com/ijmpd

References in corpus (33)

• Shapiro delay measurement of a two solar mass neutron star
• A Massive Pulsar in a Compact Relativistic Binary
• Switched magnetospheric regulation of pulsar spin-down
• Rapid Cooling of the Neutron Star in Cassiopeia A Triggered by Neutron Superfluidity in Dense Matter
• The Breaking Strain of Neutron Star Crust and Gravitational Waves
• Assessing the Role of Spin Noise in the Precision Timing of Millisecond Pulsars
• Neutron conduction in the inner crust of a neutron star in the framework of the band theory of solids
• Detection of 107 glitches in 36 southern pulsars
• Crustal Entrainment and Pulsar Glitches
• Avalanche dynamics of radio pulsar glitches
• Predicting the Starquakes in PSR J0537-6910
• Transitions between turbulent and laminar superfluid vorticity states in the outer core of a neutron star
• Long gravitational-wave transients and associated detection strategies for a network of terrestrial interferometers
• The rigidity of crystalline color superconducting quark matter
• Search method for long-duration gravitational-wave transients from neutron stars
• A hydrodynamical trigger mechanism for pulsar glitches
• 30 Glitches in slow pulsars
• Unpinning triggers for superfluid vortex avalanches
• Two decades of pulsar timing of Vela
• Superfluid turbulence and pulsar glitch statistics
• Pulsar Braking Indices, Glitches and Energy Dissipation In Neutron Stars
• A Cellular Automaton Model of Pulsar Glitches
• Vortex-nucleus interaction in the inner crust of neutron stars
• An Evidence Based Search Method For Gravitational Waves From Neutron Star Ring-downs
• Superfluid vortex unpinning as a coherent noise process, and the scale invariance of pulsar glitches
• A strong $\ddot{\nu }-\dot{\nu }$ correlation in radio pulsars with implications for torque variations
• Dynamics of Quantum Vorticity in a Random Potential
• Developing a model for neutron star oscillations following starquakes
• Tkachenko modes in rotating neutron stars: the effect of compressibility and implications for pulsar timing noise
• Superfluid instability of r-modes in "differentially rotating" neutron stars
• Spin-down Rate of Pinned Superfluid
• Short-period pulsar oscillations following a glitch
• Prospects for transient gravitational waves at r-mode frequencies associated with pulsar glitches

Cited by in corpus (21)

• New long-term braking index measurements for glitching pulsars using a glitch-template method
• Pulsar spin-down: the glitch-dominated rotation of PSR J0537-6910
• Superfluidity and Superconductivity in Neutron Stars
• Radio continuum and polarization study of SNR G57.2+0.8 associated with magnetar SGR1935+2154
• Higher-order symmetry energy and neutron star core-crust transition with Gogny forces
• Global numerical simulations of the rise of vortex-mediated pulsar glitches in full general relativity
• Relativistic dynamics of superfluid-superconducting mixtures in the presence of topological defects and an electromagnetic field with application to neutron stars
• The glitches and rotational history of the highly energetic young pulsar PSR J0537$-$6910
• Discovery of a Glitch in the Accretion Powered Pulsar SXP 1062
• Mode change of a gamma-ray pulsar, PSR J2021+4026
• Minimum Glitch of the Crab Pulsar and the Crustquake as a Trigger Mechanism
• Generating quasiperiodic pulsar glitches using a state-dependent Poisson process
• Swift observations of two outbursts from the magnetar 4U 0142+61
• Collective, glitch-like vortex motion in a neutron star with an annular pinning barrier
• Tracking the footprints of the radio pulsar B1727$-$47: proper motion, host supernova remnant, and the glitches
• A possible way to reconcile long-period precession with vortex pinning in neutron stars
• Properties and observability of glitches and anti-glitches in accreting pulsars
• Are fast radio bursts the birthmark of magnetars?
• Breakdown of the Goldreich-Julian Relation in a Neutron Star
• Pulsar rotation with superfluid entrainment
• Constraint on the internal structure of a neutron star from Vela pulsar glitches