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A Toy Model for Magnetic Field Configurations in Black Hole Accretion Discs

         

摘要

We discuss the feature of the magnetic field configuration arising from double counter oriented electric current-rings in the accretion disc around a Kerr black hole (BH). We discuss the relevant physical quantities corresponding to this configuration: (1) the power and torque transferred by the large-scale magnetic field, (2) the angular momentum and energy fluxes transferred from the BH to the inner disc, (3) the radiation flux from the disc. In addition, we discuss the possibility that the closed magnetic field anchored at the disc probably evolves to the open magnetic field, which is helpful to produce the jet from the disc.

著录项

  • 来源
    《中国物理快报:英文版》 |2008年第6期|2327-2330|共4页
  • 作者单位

    Department of Physics, Huazhong University of Science and Technology, Wuhan 430074;

    Department of Physics, Huazhong University of Science and Technology, Wuhan 430074;

    Department of Physics, Huazhong University of Science and Technology, Wuhan 430074;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 物理学;
  • 关键词

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