| A Study of Neutron Star Structure in Strong Magnetic Fields that includes Anomalous Magnetic Moments |
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| 作者姓名： | Akira Iwamoto |
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| 作者单位： | Japan Atomic |
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| 基金项目： | STA foundation and the National Natural Science Foundation of China. |
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| 摘 要： | We study the effect of strong magnetic fields on the structure of neutronstar. We find that if the interior field is on the same order as the surface field currently observed, then the influences of the field on the star‘s mass and radius arenegligible; if the field is as large as that estimated from the scalar virial theorem,then considerable effects will be induced. The maximum mass of the star will be increased substantially while the central density is greatly reduced. The radius of a magnetic star can be larger by about 10%～20% than a nonmagnetic star of the same mass.
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| 关 键 词： | 中子星 结构 磁性 恒星物理学 状态方程 不规则磁矩 |
A Study of Neutron Star Structure in Strong Magnetic Fields that includes Anomalous Magnetic Moments |
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| Akira Iwamoto.A Study of Neutron Star Structure in Strong Magnetic Fields that includes Anomalous Magnetic Moments[J].Chinese Journal of Astronomy and Astrophysics,2003,3(4):359-374. |
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| Authors: | Guang-Jun Mao Akira Iwamoto Zhu-Xia Li |
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| Institution: | [1]InstituteofHighEnergyPhysics,ChineseAcademyofScience,Beijing100039 [2]JapanAtomicEnergyResearchInstitute,Tokai,Naka,Ibaraki319-1195,Japan [3]ChinaInstituteofAtomicEnergy,Beijing102413 |
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| Abstract: | We study the effect of strong magnetic fields on the structure of neutron star. We find that if the interior field is on the same order as the surface field currently observed, then the influences of the field on the star's mass and radius are negligible; if the field is as large as that estimated from the scalar virial theorem, then considerable effects will be induced. The maximum mass of the star will be increased substantially while the central density is greatly reduced. The radius of a magnetic star can be larger by about 10%-20% than a nonmagnetic star of the same mass. |
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| Keywords: | stars: neutron stars-stars: magnetic fields-equation of state |
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