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View article: Superfluid Rivers in Spinning-down Neutron Stars
Superfluid Rivers in Spinning-down Neutron Stars Open
We study the motion of neutron superfluid vortices in a spinning-down neutron star, assuming axisymmetry of the flow and ignoring the motion of vortices about the rotation axis. We find that the vortex array, if initially rectilinear, is s…
View article: Superfluid Rivers in Spinning-down Neutron Stars
Superfluid Rivers in Spinning-down Neutron Stars Open
We study the motion of neutron superfluid vortices in a spinning-down neutron star, assuming axisymmetry of the flow and ignoring motion of vortices about the rotation axis. We find that the vortex array, if initially rectilinear, is soon …
View article: Vortex Pinning in Neutron Stars, Slipstick Dynamics, and the Origin of Spin Glitches
Vortex Pinning in Neutron Stars, Slipstick Dynamics, and the Origin of Spin Glitches Open
We study pinning and unpinning of superfluid vortices in the inner crust of a neutron star using three-dimensional dynamical simulations. Strong pinning occurs for certain lattice orientations of an idealized, body-centered-cubic lattice a…
View article: Vortex Pinning in Neutron Stars, Slip-stick Dynamics, and the Origin of Spin Glitches
Vortex Pinning in Neutron Stars, Slip-stick Dynamics, and the Origin of Spin Glitches Open
We study pinning and unpinning of superfluid vortices in the inner crust of a neutron star using 3-dimensional dynamical simulations. Strong pinning occurs for certain lattice orientations of an idealized, body-centered cubic lattice, and …
View article: Tangled magnetic field model of QPOs
Tangled magnetic field model of QPOs Open
The highly tangled magnetic field of a magnetar supports shear waves similar to Alfvén waves in an ordered magnetic field. Here, we explore if torsional modes excited in the stellar interior and magnetosphere can explain the quasi-periodic…
View article: Hydrodynamic Stability Analysis of the Neutron Star Core
Hydrodynamic Stability Analysis of the Neutron Star Core Open
Hydrodynamic instabilities and turbulence in neutron stars have been suggested to be related to observable spin variations in pulsars, such as spin glitches, timing noise, and precession (nutation). Accounting for the stabilizing effects o…
View article: SUPPLEMENT TO “TORSIONAL OSCILLATIONS OF A MAGNETAR WITH A TANGLED MAGNETIC FIELD” (2016, ApJL, 823, L1)*
SUPPLEMENT TO “TORSIONAL OSCILLATIONS OF A MAGNETAR WITH A TANGLED MAGNETIC FIELD” (2016, ApJL, 823, L1)* Open
We introduce a mean-field formalism with which to study the oscillations of a neutron star or other stellar object with a dipolar magnetic field plus a topologically distinct isotropic magnetic tangle that stabilizes the field configuratio…