Global Structures of Advection-Dominated Two-Temperature Accretion Disks
Global Structures of Advection-Dominated Two-Temperature Accretion Disks
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平流主导的两温吸积盘的整体结构
DOI：
10.1093/pasj/48.5.761
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发表时间：
1996
影响因子：
2.3
通讯作者：
S. Kato
中科院分区：
文献类型：
--
作者：
K. Nakamura;R. Matsumoto;M. Kusunose;S. Kato
已经构建了光学薄、平流主导、双温度吸积到黑洞的稳定跨音速全局流模型。垂直方向积分的物理量采用 Shakura-Sunyaev 型 a 粘度进行处理。考虑了轫致辐射和康普顿冷却，但不考虑同步加速器-康普顿冷却。我们发现，在我们的模型中，圆盘内部的电子温度相当高，因为表面密度较低且冷却效率相当低。我们得到了MCrit，高于此值不允许有稳定解，并且发现在电子温度较高的状态下需要考虑相对论冷却效应。
Models of steady transonic global flows of optically thin, advection-dominated, two-temperature accretion onto black holes have been constructed. The physical quantities integrated over the vertical direction are treated with the Shakura-Sunyaev type a-viscosity. Bremsstrahlng and Compton cooling are considered, but synchrotron-Compton cooling is not taken into account. It has been found that the electron temperature in the inner part of the disk is fairly high in our model, because the surface density is low and the cooling there is rather inefficient. We have obtained MCrit above which no steady solution is allowed, and have found that it is necessary to consider the relativistic cooling effect in the state that the electron temperature is higher.