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Superfluid signatures in magnetar seismology
N. Andersson, K. Glampedakis, L. Samuelsson
We investigate the role of neutron star superfluidity for magnetar oscillations. Using a plane-wave analysis we estimate the effects of a neutron superfluid in the elastic crust re…
Oscillations of Rapidly Rotating Superfluid Stars
Andrea Passamonti, Brynmor Haskell, Nils Andersson
Using time evolutions of the relevant linearised equations we study non-axisymmetric oscillations of rapidly rotating and superfluid neutron stars. We consider perturbations of New…
Oscillations of rapidly rotating stratified neutron stars
A. Passamonti, B. Haskell, N. Andersson +2
We use time-evolutions of the linear perturbation equations to study the oscillations of rapidly rotating neutrons stars. Our models account for the buoyancy due to composition gra…
A hydrodynamical trigger mechanism for pulsar glitches
K. Glampedakis, N. Andersson
The standard explanation for large pulsar glitches involves transfer of angular momentum from an internal superfluid component to the star's crust. This model requires an instabili…
On the stability of precessing superfluid neutron stars
K. Glampedakis, N. Andersson, D. I. Jones
We discuss a new superfluid instability occuring in the interior of mature neutron stars with implications for freely precessing neutron stars. This short-wavelength instability is…
Waves and instabilities in dissipative rotating superfluid neutron stars
T. Sidery, N. Andersson, G. L. Comer
We discuss wave propagation in rotating superfluid neutron star cores, taking into account the vortex mediated mutual friction force. For models where the two fluids co-rotate in t…