Unusual Evolution Characteristics in Black Hole Disk-Accretion

Details Unusual Evolution Characteristics in Black Hole Disk-Accretion Unusual Evolution Characteristics in Black Hole Disk-Accretion

Jun 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000chphl..17..463w&link_type=abstract

Chinese Physics Letters, Volume 17, Issue 6, pp. 463-465 (2000).

Physics

2

Scientific paper

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.

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