A simple mechanism for the anti-glitch observed in magnetar 1E 2259+586
arXiv:1402.0848 · doi:10.1093/mnrasl/slv019
Abstract
In this short communication we present a simple internal mechanism that accounts for the recently observed anti-glitch in magnetar 1E 2259+586. We propose that the decay of an internal toroidal magnetic field component would de-stabilize an originally stable prolate star configuration. Then, the subsequent rearrangement of the stellar structure would give rise to a "more spherical" configuration, resulting in a sudden spin-down of the whole star. We present here some order of magnitude calculation to give confidence to this scenario, using the simplest analytical stellar model and let more detailed calculations for a more technical future paper.
5 pages, 2 figures. Comments are welcome
References in corpus (4)
Cited by in corpus (11)
- Phase transitions in neutron stars and their links to gravitational waves
- A radiatively-quiet glitch and anti-glitch in the magnetar 1E 2259+586
- Magnetic-distortion-induced ellipticity and gravitational wave radiation of neutron stars: millisecond magnetars in short GRBs, Galactic pulsars, and magnetars
- Anti-glitches within the standard scenario of pulsar glitches
- Discovery of the first anti-glitch event in the rotation-powered pulsar PSR B0540-69
- Interpreting the AXP 1E 2259+586 antiglitch as a change in internal magnetization
- Anti-glitches in accreting pulsars from superfluid vortex avalanches
- The radio shut-off, glitch, and X-ray burst in 1E 1547.0-5408 interpreted through magnetic reconfiguration
- Breakdown of the Goldreich-Julian Relation in a Neutron Star
- Magnetar structure in non-linear electrodynamics with mixed poloidal-toroidal fields
- The anti-glitching gamma-ray pulsar PSR J1522-5735