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

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...208.7704n&link_type=abstract

American Astronomical Society, AAS Meeting #208, #77.04

Physics

Condensed Matter

Superconductivity

Scientific paper

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 quark stars. In particular we calculate the magnetic field decay due to the expulsion of spin-induced vortices from the star's superconducting-superfluid interior, and the resultant spin-down rate.
We find that, for initial parameters characteristic of AXPs/SGRs (1013 Within these timescales, we show that the observed period clustering in RQINSs can be explained by compactness, as well as calculate how the magnetic field and period evolve in a manner concurrent with RQINS observations.

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