Differential rotation of neutron star polar caps.
The anisotropic conductivity
A.I. Tsygan, D.A.Shalybkov, D.P.Barsukov, O.A.Goglichidze
Ioffe Physical-Tekhnical Institute,
Politekhnicheskaya 26,
St. Petersburg, 194021, Russia
The differential rotation of liquid polar caps
caused by magnetospheric currents closing up under neutron
star surface is considered. The anisotropy of electric
conductivity and viscosity due to magnetic field is taken
into account. It is shown that rotation velocity is small
and almost all electric current close up deeper, inside
rigid crust.
