Pulsar glitch recovery and the superfluidity coefficients of bulk nuclear matter
arXiv:1007.4360 · doi:10.1111/j.1365-2966.2010.17387.x
Abstract
A two-component hydrodynamic model is constructed of the global superfluid flow induced by two-component Ekman pumping during the recovery stage of a glitch. The model successfully accounts for the quasi-exponential recovery observed in pulsars like Vela and the "overshoot" observed in pulsars like the Crab. By fitting the model to high-resolution timing data, three important constitutive coefficients in bulk nuclear matter can be extracted: the shear viscosity, the mutual friction parameter, and the charged fluid fraction. The fitted coefficients for the Crab and Vela are compared with theoretical predictions for several equations of state, including the color-flavor locked and two-flavor color superconductor phases of quark matter.
19 pages, 12 figures
References in corpus (16)
- Neutron Star Observations: Prognosis for Equation of State Constraints
- Energy Loss and Flow of Heavy Quarks in Au+Au Collisions at sqrt(s_NN) = 200 GeV
- Isotopic dependence of the giant monopole resonance in the even-A ^{112-124}Sn isotopes and the asymmetry term in nuclear incompressibility
- Avalanche dynamics of radio pulsar glitches
- Locating the inner edge of neutron star crust using terrestrial nuclear laboratory data
- Shear viscosity in neutron star cores
- Transitions between turbulent and laminar superfluid vorticity states in the outer core of a neutron star
- The rigidity of crystalline color superconducting quark matter
- A hydrodynamical trigger mechanism for pulsar glitches
- Two decades of pulsar timing of Vela
- Superfluid turbulence and pulsar glitch statistics
- A Cellular Automaton Model of Pulsar Glitches
- Superfluid vortex unpinning as a coherent noise process, and the scale invariance of pulsar glitches
- Dynamics of Quantum Vorticity in a Random Potential
- Hydromagnetic waves in a superfluid neutron star with strong vortex pinning
- Mutual friction in a cold color flavor locked superfluid and r-mode instabilities in compact stars
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- Anti-glitches in accreting pulsars from superfluid vortex avalanches
- A real-time Automated Glitch Detection Pipeline at Ooty Radio Telescope
- Hydrodynamic Stability Analysis of the Neutron Star Core
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- Gravitational Waves from Gamma-Ray Pulsar Glitches
- Interpreting superfluid spin up through the response of the container
- On the Relaxation Behaviors of Slow and Classical Glitches: Observational Biases and Their Opposite Recovery Trends
- Persistent gravitational radiation from glitching pulsars. II. Updated scaling with vortex number
- Oscillatory superfluid Ekman pumping in Helium II and neutron stars
- Pulsar as a Weber detector of gravitational waves and a probe to its internal phase transitions
- Measuring the crust-superfluid coupling time-scale for 105 UTMOST pulsars with a Kalman filter