Unusual Evolution Characteristics in Black Hole Disk-Accretion,
WANG Ding-Xiong
Department of Physics, Huazhong University of Science and Technology, Wuhan 430074
Unusual Evolution Characteristics in Black Hole Disk-Accretion,
WANG Ding-Xiong
Department of Physics, Huazhong University of Science and Technology, Wuhan 430074
关键词 ：
97.60.Lf ,
98.62.Mw ,
04.70.-s
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.
Key words ：
97.60.Lf
98.62.Mw
04.70.-s
出版日期: 2000-06-01
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2000, Vol. 17 
