"Anti-glitches" in the Quark-Nova model for AXPs
arXiv:1307.1386 · doi:10.1007/s10509-014-1941-8
Abstract
In the Quark-Nova model, AXPs are quark stars surrounded by a degenerate iron-rich Keplerian ring (a few stellar radii away). AXP bursts are caused by accretion of chunks from the inner edge of the ring following magnetic field penetration. For bright bursts, the inner disk is prone to radiation induced warping which can tilt it into counter-rotation (i.e. retrograde). For AXP 1E2259+586, the 2002 burst satisfies the condition for the formation of a retrograde inner ring. We hypothesize the 2002 burst reversed the inner ring setting the scene for the 2012 outburst and "anti-glitch" when the retrograde inner ring was suddenly accreted leading to the basic observed properties of the 2012 event.
5 pages. Accepted for publication in Astrophysics and Space Science. (Companion paper: http://adsabs.harvard.edu/abs/2014Ap%26SS.350..701K )
References in corpus (7)
- An Anti-Glitch in a Magnetar
- Numerical Simulation of the Hydrodynamical Combustion to Strange Quark Matter
- Nucleosynthesis in neutron-rich ejecta from quark-novae
- Anti-glitch of magnetar 1E 2259+586 in the wind braking scenario
- Magnetospheric "anti-glitches" in magnetars
- Antiglitch Inconsistent With Magnetar Model of AXP
- The spectral and beaming characteristics of the anomalous X-ray pulsar 4U 0142+61