黑洞吸积盘的温度分布  

Temperature Distribution of the Accretion Disc Around a Black Hole

作　　者：曹新伍[1] 卢炬甫[1] 

机构地区：[1]中国科技大学天体物理中心,合肥230026

出　　处：《天体物理学报》1992年第4期297-301,共5页

基　　金：国家自然科学基金

摘　　要：本文以声速点的物理量作为边界条件,积分流体力学方程组,给出了几何薄光学厚的黑洞吸积盘的温度分布.结果表明在这种吸积盘的内缘温度将急剧下降.另外,我们发现几何薄光学薄气体压为主的α-律吸积盘是热不稳定的.The temperature distribution of an accretio disc around a black hole is investigated in detail by numerically integrating a system of hydrodynamic equations from the sonic point. The results obtained in this paper show that the temperature drops rapidly in the inner edge of optically thick and geometrically thin disc around a black hole. Also, it is found that the optically and geometrically thin α-law disc domnated by gas pressure is thermal unstable.

关 键 词：吸积盘 黑洞 温度分布 

分 类 号：P145.8[天文地球—天体物理]