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中子星中简并电子气体的临界磁化

王兆军 吕国梁 朱春花 张军

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中子星中简并电子气体的临界磁化

王兆军, 吕国梁, 朱春花, 张军

Critical magnetization of degenerate electronic system in neutron star

Lv Guo-Liang, Wang Zhao-Jun, Zhang Jun, Zhu Chun-Hua
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  • 中子星内部的电子处于高度简并或完全简并的状态,电子磁矩(包括内禀磁矩和朗道反磁矩)的取向不是随机的,而是呈现出极强的磁化行为.考虑了磁化后的磁诱导方程要改写,改写后的方程添加了新的磁场生成项,更重要的改变是等效磁扩散系数变小了(顺磁情况),在临界情况(等效扩散系数等于零),磁场在磁生成项的作用下增加直到抑制机理出现,朗道反磁矩就是在这个时候变得越来越重要.磁场增加的最终结果使中子星局域磁场成为振荡的,对外看来有可能成为磁星.
    Degenerate electronic Fermi system with intrinsic (spin) magnetic moment and Landau diamagnetic moment of the electrons in a neutron star interior is magnetized. Taking the magnetizing effect into consideration, the magnetic induced equation must be changed: the resulting equation has an additional magnetic induction term and a magnetic diffusion coefficient that is different from the original one for plasma. When effective magnetic diffusion coefficient equals critical value ( zero) the fully degenerate electronic system approaches a new phase. In this phase, the magnetic field of neutron star will become very large until other mechanisms suppress the increasing of the field in the neutron star lowered crust. For a stable or de Hass-Van Alphen oscillatory state, it is possible for the neutron star to become a magnetar .
    • 基金项目: 国家自然科学基金(批准号:10963003)资助的课题.
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    Thompson C, Duncan R C 1995 Monthly Notices of the Royal Astronomical Society 275 255

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    Woods P M, Thompson C 2006 in Compact Stller X-ray Source (Cambridge: Cambridge University) pp547—586

    [16]

    Haberl H 2007 Astrophysica and Space Science 308 181

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    Gil J, Melikidze G, Geppert U 2003 Astronomy & Astrophysics 407 315

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    Ruderman M 2005 arXiv: 0510623

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    Geppert U 2009 In Neutron Stars and Pulsars (Volume. 1) (Berlin: Springer) p319—352

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    Geppert U, Rheinhardt M 2006 Astronomy & Astrophysics 456 639

    [23]

    Urpin V, Levshakov S 1986 Monthly Notices of the Royal Astronomical Society 219 703

    [24]

    Peng Q H, Luo Z Q 2006 Chinese Astronomy and Astrophysics 248 253

    [25]

    Peierls R E 1933 Z. Phys. 81 186

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    Spitzer L 1956 in Physics of Fully Ionized Gases ( New York: Inter Science)

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    Ghosh P 2007 in Rotation and Accretion Powered Pulsars (New Jersey : World Scientific)

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  • [1]

    Anderson P, Itoh N 1975 Nature 256 25

    [2]

    Ruderman M, Zhu T H, Chen K Y 1998 Astrophysical Journal 492 267

    [3]

    Alpar M A, Cheng K S, Pines D 1989 Astrophysical Journal 346 823

    [4]

    Radhakrishnan V, Manchester R N 1969 Nature 222 228

    [5]

    Lyne A G, Rrichard R S 1987 Monthly Notices of the Royal Astronomical Society 229 223

    [6]

    Wang N, Manchester R N, Pace R T, Bailes M, Kaspi V M, Stappers B W, Lyne A G 2000 Monthly Notices of the Royal Astronomical Society 317 843

    [7]

    Dai Z G,Lu T,Peng Q H 1993 Acta Phys. Sin. 42 1210 [戴子高、陆 埮、彭秋和 1993 物理学报 42 1210]

    [8]

    Pacini F 1967 Nature 216 567

    [9]

    Gold T 1968 Nature 218 731

    [10]

    Ostriker J P, Gunn J E 1969 Astrophysical Journal 157 1395

    [11]

    Manchester R N 2004 Science 567 542

    [12]

    Kouvelioton C 1998 Nature 393 235

    [13]

    Kaspi V M 2003 Astrophysical Journal 588 93

    [14]

    Thompson C, Duncan R C 1995 Monthly Notices of the Royal Astronomical Society 275 255

    [15]

    Woods P M, Thompson C 2006 in Compact Stller X-ray Source (Cambridge: Cambridge University) pp547—586

    [16]

    Haberl H 2007 Astrophysica and Space Science 308 181

    [17]

    Gil J, Melikidze G, Geppert U 2003 Astronomy & Astrophysics 407 315

    [18]

    Ruderman M 2005 arXiv: 0510623

    [19]

    Angle J P R 1981 Astrophysical Journal 45 457

    [20]

    Thompson C, Duncan R C 1993 Astrophysical Journal 408 194

    [21]

    Geppert U 2009 In Neutron Stars and Pulsars (Volume. 1) (Berlin: Springer) p319—352

    [22]

    Geppert U, Rheinhardt M 2006 Astronomy & Astrophysics 456 639

    [23]

    Urpin V, Levshakov S 1986 Monthly Notices of the Royal Astronomical Society 219 703

    [24]

    Peng Q H, Luo Z Q 2006 Chinese Astronomy and Astrophysics 248 253

    [25]

    Peierls R E 1933 Z. Phys. 81 186

    [26]

    Spitzer L 1956 in Physics of Fully Ionized Gases ( New York: Inter Science)

    [27]

    Brandenburg A, Kandaswamy S 2005 arXiv: 0405052V2

    [28]

    Pauli W 1927 Z. Phys. 41 81

    [29]

    Landau L D, Lifshitz E M 1980 in Statistical Physics (New York: Pergamon Press)

    [30]

    Ghosh P 2007 in Rotation and Accretion Powered Pulsars (New Jersey : World Scientific)

    [31]

    Douchin F, Haensel P 2000 Phys. Lett. B 485 107

    [32]

    Landau L D, Lifshitz E M 1977 in Quanturn Mechanics (New York: Pergamon Press)

    [33]

    Johson M H, Lippmann B A, Harding A K 1949 Phys. Rev.76 828

    [34]

    Harding A K, Lai D 2006 arXiv: 0606674V2

    [35]
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出版历程
  • 收稿日期:  2010-03-13
  • 修回日期:  2010-07-15
  • 刊出日期:  2011-02-05

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