- 教授
- 博士生导师
- 硕士生导师
- 电子邮箱：
- 入职时间：1997-07-01
- 学历：博士研究生毕业
- 性别：男
- 学位：博士
- 在职信息：在职
- 毕业院校：西安交通大学
- 所属院系：数学与统计学院
- 学科：数学
Numerical Simulation of Hot Accretion Flow around Bondi Radius
- 发布时间：2025-04-30
- 论文名称：Numerical Simulation of Hot Accretion Flow around Bondi Radius
- 发表刊物：ApJ
- 摘要：Previous numerical simulations have shown that strong winds can be produced in the hot accretion flows around black holes. Most of those studies focus only on the region close to the central black hole; therefore it is unclear whether the wind production stops at large radii around Bondi radius. Bu et al. (2016) studied the hot accretion flow around the Bondi radius in the presence of nuclear star gravity. They find that, when the nuclear stars gravity is important–comparable to the black hole gravity, winds cannot be produced around the Bondi radius. However,
for some galaxies, the nuclear stars gravity around Bondi radius may not be strong. In this case, whether winds can be produced around Bondi radius is not clear. We study the hot accretion flow around Bondi radius with and without thermal conduction by performing hydrodynamical simulations. We use the virtual particles trajectory method to study whether winds exist based on the simulation data. Our numerical results show that, in the absence of nuclear stars gravity, winds can be produced around Bondi radius, which causes the mass inflow rate to decrease
inwards. We confirm the results of Yuan et al. (2012), which indicate this is due to the mass loss of gas via wind rather than convectional motions. - 合写作者：A. Mosallanezhad, D. Bu, M. Cemeljic, F. Zeraatgari, Y. Hai, L. Mei
- 卷号：939:12
- 是否译文：否
- 发表时间：2022-10-27
- 合写作者：A. Mosallanezhad, D. Bu, M. Cemeljic, F. Zeraatgari, Y. Hai, L. Mei