Deconfinement to Quark Matter in Magnetars

被引：4

作者：

Dexheimer, Veronica ^{[1
,2
]}

Negreiros, Rodrigo ^{[3
]}

Schramm, Stefan ^{[4
]}

机构：

[1] Univ Fed Santa Catarina, Florianopolis, SC, Brazil

[2] Gettysburg Coll, Gettysburg, PA USA

[3] Univ Fed Fluminense, Inst Fis, Niteroi, RJ, Brazil

[4] Goethe Univ Frankfurt, FIAS, Frankfurt, Germany

来源：

EXTREME QCD 2012 (XQCD) | 2013年 / 432卷

关键词：

NEUTRON; FIELDS; STARS; TRANSITION;

D O I：

10.1088/1742-6596/432/1/012005

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We model magnetars as hybrid stars, which have a core of quark matter surrounded by hadronic matter. For this purpose, we use an extended version of the SU(3) non-linear realization of the sigma model in which the degrees of freedom change naturally from hadrons to quarks as the temperature/density increases. The presence of a variable magnetic field allows us to study in detail the influence of Landau quantization and the anomalous magnetic moment on the particle population of the star, more precisely on particles with different spin projections. This allows us to calculate the polarization of the system throughout different phases of the star, hadronic, quark and also a mixed phase.

引用

页数：5

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