中国物理B ›› 2014, Vol. 23 ›› Issue (6): 60401-060401.doi: 10.1088/1674-1056/23/6/060401

• GENERAL • 上一篇    下一篇

Circular geodesics and accretion disk in the spacetime of a black hole including global monopole

孙旭东, 陈菊华, 王永久   

  1. College of Physics and Information Science, Hunan Normal University, Changsha 410081, China
  • 收稿日期:2013-09-17 修回日期:2013-10-23 出版日期:2014-06-15 发布日期:2014-06-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 10873004), the State Key Development Program for Basic Research Program of China (Grant No. 2010CB832803), and the Program for Changjiang Scholars and Innovative Research Team in University (Grant No. IRT0964).

Circular geodesics and accretion disk in the spacetime of a black hole including global monopole

Sun Xu-Dong (孙旭东), Chen Ju-Hua (陈菊华), Wang Yong-Jiu (王永久)   

  1. College of Physics and Information Science, Hunan Normal University, Changsha 410081, China
  • Received:2013-09-17 Revised:2013-10-23 Online:2014-06-15 Published:2014-06-15
  • Contact: Wang Yong-Jiu E-mail:wyj@hunnu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 10873004), the State Key Development Program for Basic Research Program of China (Grant No. 2010CB832803), and the Program for Changjiang Scholars and Innovative Research Team in University (Grant No. IRT0964).

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摘要： We study circular time-like geodesics in the spacetime of a black hole including global monopole. We show that when the range of parameter changed the properties of the circular geodesics and the radiation of accretion disks are different. It follows that the properties of the accretion disk around black hole including global monopole can be different from that of a disk around Schwarzschild black hole.

关键词: global monopole, geodesics, accretion disk

Abstract: We study circular time-like geodesics in the spacetime of a black hole including global monopole. We show that when the range of parameter changed the properties of the circular geodesics and the radiation of accretion disks are different. It follows that the properties of the accretion disk around black hole including global monopole can be different from that of a disk around Schwarzschild black hole.

Key words: global monopole, geodesics, accretion disk

中图分类号:  (Einstein-Maxwell spacetimes, spacetimes with fluids, radiation or classical fields)

  • 04.40.Nr
04.40.Dg (Relativistic stars: structure, stability, and oscillations) 95.30.Sf (Relativity and gravitation)