Rotational Instability in Supersonic Accretion Flows

摘要：

We studied the structure formed around black holes as a consequence of one-dimensional, quasi-spherical, supersonic accretion flows. The structure accompanies an accretion shock, inside which the flow is subsonic and is dissipated by viscosity. We found that the viscous angular momentum transfer induces ? l/ ?r<0 close to the accretion shock, where/ is the specific angular momentum and r is the radius from the black hole. Hence, the flow there is subject to rotational instability.

关键词： accretion accretion disks instabilities

作者: Seong-Jae Lee Dongsu Ryu

作者单位: Department of Astronomy and Space Science, Chungnam National University, Republic of South Korea

会议类型: 国际会议

会议名称: 紧凑型物体的天体物理学国际会议(International Conference on Astrophysics of Compact Objects)

会议地点: 安徽黄山

会议语种:英文

页码: 420-422

在线出版日期: 2007-07-01（万方平台首次上网日期，不代表论文的发表时间）