{ "id": "1501.05149", "version": "v1", "published": "2015-01-21T12:04:52.000Z", "updated": "2015-01-21T12:04:52.000Z", "title": "Three-dimensional simulations of the magnetic stress in a neutron star crust", "authors": [ "Toby S Wood", "Rainer Hollerbach" ], "comment": "5 figures, submitted to Physical Review Letters", "categories": [ "astro-ph.SR" ], "abstract": "We present the first fully self-consistent three-dimensional model of a neutron star's magnetic field, generated by electric currents in the star's crust via the Hall effect. We find that the global-scale field converges to a Hall-attractor state, as seen in recent axisymmetric models, but that small-scale features in the magnetic field survive even on much longer timescales. These small-scale features propagate toward the dipole equator, where the crustal electric currents organize themselves into a strong equatorial jet. By calculating the distribution of magnetic stresses in the crust, we predict that neutron stars with fields stronger than $10^{14}$G can still be subject to starquakes more than $10^5$yr after their formation.", "revisions": [ { "version": "v1", "updated": "2015-01-21T12:04:52.000Z" } ], "analyses": { "keywords": [ "neutron star crust", "magnetic stress", "three-dimensional simulations", "small-scale features", "first fully self-consistent three-dimensional model" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }