Physics
Scientific paper
Aug 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1269..174m&link_type=abstract
THE 10TH INTERNATIONAL SYMPOSIUM ON ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: OMEG-2010. AIP Conference Proceedings, Volume 1
Physics
X-Ray Pulsars, Star Formation, Neutron Stars, Magnetic Field Effects, Landau Levels, Pulsars, Star Formation, Neutron Stars, Magnetic Fields And Magnetism, Landau Levels
Scientific paper
We explore the possibility that soft gamma-ray repeaters (SGRs) and anomalous X-ray pulsars (AXPs) might be the result of a magnetic phase separation in magnetars. Magnetars are thought to be the site for the origin of observed SGRs and AXPs. We study the separation of magnetar-matter into phases of different flux density. We identify the parameter space in matter density and magnetic field strength at which there is an instability for magnetic domain formation. We show that such instabilities are likely to occur in the deep outer crust for the magnetic Baym, Pethick, Sutherland (BPS) model and in the inner crust and core for magnetars described by the relativistic Hartree theory. We estimate that the energy released by the onset of this instability is consistent with the energy emitted by SGRs.
Mathews Grant J.
Suh Insaeng
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