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Hall Effect in Neutron Star Crusts

Published online by Cambridge University Press:  07 August 2014

K. N. Gourgouliatos  and
A. Cumming
K. N. Gourgouliatos
Affiliation:
Department of Physics, McGill University, 3600 rue University, Montréal, Québec H3A 2T8, Canada email: [email protected]
A. Cumming
Affiliation:
Department of Physics, McGill University, 3600 rue University, Montréal, Québec H3A 2T8, Canada email: [email protected]
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Abstract

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The crust of Neutron Stars can be approximated by a highly conducting solid crystal lattice. The evolution of the magnetic field in the crust is mediated through Hall effect, namely the electric current is carried by the free electrons of the lattice and the magnetic field lines are advected by the electron fluid. Here, we present the results of a time-dependent evolution code which shows the effect Hall drift has in the large-scale evolution of the magnetic field. In particular we link analytical predictions with simulation results. We find that there are two basic evolutionary paths, depending on the initial conditions compared to Hall equilibrium. We also show the effect axial symmetry combined with density gradient have on suppressing turbulent cascade.

Keywords

MHDstars: magnetic fieldstars: neutron
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S302: Magnetic Fields throughout Stellar Evolution , August 2013 , pp. 415 - 418
Copyright
Copyright © International Astronomical Union 2014 

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