Chin. Phys. Lett.  2000, Vol. 17 Issue (6): 463-465    DOI:
Original Articles |
Unusual Evolution Characteristics in Black Hole Disk-Accretion,
WANG Ding-Xiong
Department of Physics, Huazhong University of Science and Technology, Wuhan 430074
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WANG Ding-Xiong 2000 Chin. Phys. Lett. 17 463-465
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Abstract It is shown that evolution characteristics of black hole (BH) parameters in the pure disk-accretion are determined uniquely by BH spin parameter a*. Some unusual evolution characteristics of the parameters of BH accretion disks, such as angular velocity, temperature and event horizon radius, are investigated in both thin and thick disk-accretion. And the corresponding turning points, a*c. are derived. In addition, two characteristic functions describing the evolution of BH parameters are derived for thin and thick disks, respectively.


Keywords: 97.60.Lf      98.62.Mw      04.70.-s     
Published: 01 June 2000
PACS:  97.60.Lf (Black holes)  
  98.62.Mw (Infall, accretion, and accretion disks)  
  04.70.-s (Physics of black holes)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2000/V17/I6/0463
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