Magnetic Field Decay and Period Evolution of Anomalous X-Ray Pulsars in the Context of Quark Stars

Details Magnetic Field Decay and Period Evolution of Anomalous X-Ray Pulsars in the Context of Quark Stars Magnetic Field Decay and Period Evolution of Anomalous X-Ray Pulsars in the Context of Quark Stars

2006-03-27

arxiv.org/abs/astro-ph/0603741v2

Astrophys.J.646:L17-L20,2006

Astronomy and Astrophysics

Astrophysics

4 pages, 4 figures, accepted to ApJ Letters

Scientific paper

10.1086/506521

We discuss a model wherein soft gamma-ray repeaters (SGRs), anomalous X-ray pulsars (AXPs), and radio quiet isolated neutron stars (RQINSs) are all compact objects exhibiting superconductivity, namely color-flavor locked quark stars. In particular we calculate the magnetic field decay due to the expulsion of spin-induced vortices from the star's superfluid-superconducting interior, and the resultant spin-down rate. We find that, for initial parameters characteristic of AXPs/SGRs ($10^{13}

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