Neutron Star Composition in Strong Magnetic Fields
MAO Guang-Jun1, V. N. Kondratyev1, A. Iwamoto1, LI Zhu-Xia2, WU Xi-Zhen2, W. Greiner3, I. N. Mikhailov4
1Japan Atomic Energy Research Institute, Tokai, Naka, Ibaraki 319-1195, Japan
2China Institute of Atomic Energy, PO Box 275(18), Beijing 102413
3Institut für Theoretische Physik der J. W. Goethe-Universität, Postfach 11 19 32, D-60054 Frankfurt am Main, Germany
4Bogoliubov Laboratory of Theoretical Physics, JINR, Dubna, Russia and CSNSM-IN2P3, Orsay, France
Neutron Star Composition in Strong Magnetic Fields
MAO Guang-Jun1;V. N. Kondratyev1;A. Iwamoto1;LI Zhu-Xia2;WU Xi-Zhen2;W. Greiner3;I. N. Mikhailov4
1Japan Atomic Energy Research Institute, Tokai, Naka, Ibaraki 319-1195, Japan
2China Institute of Atomic Energy, PO Box 275(18), Beijing 102413
3Institut für Theoretische Physik der J. W. Goethe-Universität, Postfach 11 19 32, D-60054 Frankfurt am Main, Germany
4Bogoliubov Laboratory of Theoretical Physics, JINR, Dubna, Russia and CSNSM-IN2P3, Orsay, France
Abstract： We study the neutron star composition in the presence of a strong magnetic field. The effects of the anomalous magnetic moments of both nucleons and electrons are investigated in relativistic mean field calculations for a β-equilibrium system. Since neutrons are fully spin polarized in a large field, generally speaking, the proton fraction can never exceed the field free case. An extremely strong magnetic field may lead to a pure neutron matter instead of a proton-rich matter.
MAO Guang-Jun;V. N. Kondratyev;A. Iwamoto;LI Zhu-Xia;WU Xi-Zhen;W. Greiner;I. N. Mikhailov. Neutron Star Composition in Strong Magnetic Fields[J]. 中国物理快报, 2003, 20(8): 1238-1241.
MAO Guang-Jun, V. N. Kondratyev, A. Iwamoto, LI Zhu-Xia, WU Xi-Zhen, W. Greiner, I. N. Mikhailov. Neutron Star Composition in Strong Magnetic Fields. Chin. Phys. Lett., 2003, 20(8): 1238-1241.
2003, Vol. 20 
