Evolution characteristics of black holes in prograde and retrograde accretions.

Details Evolution characteristics of black holes in prograde and retrograde accretions. Evolution characteristics of black holes in prograde and retrograde accretions.

Feb 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000acasn..41...15w&link_type=abstract

Acta Astron. Sin., Vol. 41, No. 1, p. 15 - 22

Astronomy and Astrophysics

Astronomy

1

Black Holes: Accretion Disks

Scientific paper

The evolution characteristics of central black holes of thin and thick disks are investigated in prograde and retrograde accretions, respectively. It is shown that these evolution charcteristics in retrograde accretion are very different from those in the prograde case. The temperature of black holes decreases monotonously in prograde case, while it has a maximum in retrograde case. The entropy of black holes always increases in the whole accretion process, and the rates of change of the entropy in retrograde case are much larger than those in the prograde case. In addition, the correlation between mass variation and spins of black holes is discussed.

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