Coupled post-glitch response of the crust and interior of a neutron star
by
Anthony van Eysden(Nordita)
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Europe/Stockholm
122:022
122:022
Description
The spin-up of magnetized plasma and its role in the post-glitch response
of neutron stars was first studied over thirty years ago, where it was
demonstrated that co-rotation between crust and plasma is established
rapidly (within a few seconds) by a process analogous to Ekman pumping in a
viscous fluid.However, if the magnetized plasma is considered to be ideal,
conservation of energy implies that the final state cannot be co-rotation.
Using an exact analytical solution for the coupled motion of the crust and
plasma, we demonstrate that the system oscillates persistently and explore
the consequences for neutron star observations.
