Damping of neutron star shear modes by superfluid friction
نویسنده
چکیده
The forced motion of superfluid vortices in shear oscillations of rotating solid neutron star matter produces damping of the mode. A simple model of the unpinning and repinning processes is described, with numerical calculations of the consequent energy decay times. These are of the order of 1 s for typical anomalous X-ray pulsars with rotational angular velocity Ω ≈ 1 rad s but become very short for radio pulsars with Ω ≈ 10 − 100 rad s. The superfluid friction processes considered here may also be significant for the damping of r-modes in rapidly rotating neutron stars.
منابع مشابه
r-modes in superfluid neutron stars
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