反常粘滞吸积薄盘的稳定结构  

The stationary structure of the thin accretion disk with anomalous viscosity

作　　者：周爱萍[1] 臧永丽[1] 张化福[1] 

机构地区：[1]山东理工大学理学院,山东淄博255049

出　　处：《山东大学学报（理学版）》2011年第1期67-70,共4页Journal of Shandong University(Natural Science)

摘　　要：根据描述吸积盘的流体动力学方程,给出无磁场情况下的质量、动量和能量守恒方程。在所给定方程的基础上,利用新的反常粘滞计算了黑洞周围吸积盘内区的结构。数值结果表明盘内区的气体不是做开普勒旋转,温度随吸积率变化比较明显,在M=10M⊙,M=100ME的情况下,吸积盘的最大温度可达到3.35×107K。同时给出了面密度和径向速度的分布规律。Based on the hydrodynamic equations of accretion disks, the conservation equations of mass, momentum and energy with absence of magnetic field were given. On the basis of the equations obtained, the structure of the inner region of the accretion disks surrounding black hole was calculated by using the new anomalous viscosity. The numerical results showed that the gas motion was not Keplerian in the inner region of the disk. The temperature varied significantly with the accretion rate, and the maximal temperature of the accretion disks could reach 3.35 × 10^7K in the case of M = 10MO ,M= 100ME. The distributions of the mass density and the radial velocity were also shown.

关 键 词：黑洞 吸积盘 反常粘滞 吸积率 

分 类 号：P142[天文地球—天体物理]