Neutron Star Composition in Strong Magnetic Fields

Chin. Phys. Lett.

2003, Vol. 20

Issue (8): 1238-1241 DOI:

Original Articles

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

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MAO Guang-Jun, V. N. Kondratyev, A. Iwamoto et al 2003 Chin. Phys. Lett. 20 1238-1241

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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.

Keywords: 26.60.+c 97.10.Ld 97.60.Jd

Published: 01 August 2003

PACS:	26.60.+c
	97.10.Ld	(Magnetic and electric fields; polarization of starlight)
	97.60.Jd	(Neutron stars)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2003/V20/I8/01238

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	MAO Guang-Jun
	V. N. Kondratyev
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	LI Zhu-Xia
	WU Xi-Zhen
	W. Greiner
	I. N. Mikhailov

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