摘要
分别在薄盘和厚盘两种情况下,讨论吸积盘的中心黑洞在顺行吸积和逆行吸积中的演化特征.结果表明,黑洞的温度和熵在逆行吸积与顺行吸积中的演化特征很不相同:在顺行吸积中黑洞的温度单调减小,而在逆行吸积中黑洞的温度存在一个极大值;在吸积的全过程中,黑洞的熵始终是增加的,而且逆行吸积中黑洞熵的变化率要比顺行吸积中的黑洞熵的变化率大得多.此外还讨论了在吸积过程中。
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 characteristics 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.
出处
《天文学报》
CSCD
北大核心
2000年第1期15-22,共8页
Acta Astronomica Sinica
基金
国家自然科学基金!(19773005)
关键词
黑洞
吸积盘
演化特征
black hole, accretion disk, evolution
