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On the Long Term Stability of Neutron Star Magnetic Fields

Published online by Cambridge University Press:  04 August 2017

David Eichler
Affiliation:
1. University of Maryland, College Park, Md. 2. Ben Gurion University, Beer Sheva, Israel
Zhengzhi Wang
Affiliation:
1. University of Maryland, College Park, Md.

Extract

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It is known that fluid object that it magnetized with a purely poloidal field is unstable to perturbations that overturn the field lines in one hemisphere relative to those in the other. We have shown that this instability occurs even when the entire object is encased by a solid crust, as conjectured by Flowers and Ruderman (FR) nearly a decade ago. We have derived the exact dispersion relation that displays this instability for an infinite, cylindrical geometry, which will be published elsewhere. The timescale for the instability is roughly the ohmic dissipation timescale of the crust.

Type
IV. Neutron Stellar Evolution
Copyright
Copyright © Reidel 1987