Coupled post-glitch response of the crust and interior of a neutron star

by Anthony van Eysden (Nordita)

Wednesday 11 Sept 2013, 13:30 → 14:00 Europe/Stockholm

122:022

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.

Talk in Yerevan Armenia