论文标题
热传导和各向异性压力的热积聚流的自相似溶液
Self-similar Solution of Hot Accretion Flow with Thermal Conduction and Anisotropic Pressure
论文作者
论文摘要
我们通过求解轴对称，稳态的磁性水力动力学方程来探索各向异性热传导，各向异性压力和磁场强度对黑洞周围的热积聚的影响。各向异性压力被称为一种机制，用于在质量积聚速率极低的热积聚流中弱碰撞等离子体中转运角动量。但是，各向异性压力不会广泛影响角动量的运输，这会导致风区域的收缩。我们的结果表明，磁场的强度可以帮助Poynting Energy通量克服动能通量。该结果可能适用于了解银河中心SGR A*和M87 Galaxy中的热积聚流。
We explore the effects of anisotropic thermal conduction, anisotropic pressure, and magnetic field strength on the hot accretion flows around black holes by solving the axisymmetric, steady-state magnetohydrodynamic equations. The anisotropic pressure is known as a mechanism for transporting angular momentum in weakly collisional plasmas in hot accretion flows with extremely low mass accretion rates. However, anisotropic pressure does not extensively impact the transport of the angular momentum, it leads to shrinkage of the wind region. Our results show that the strength of the magnetic field can help the Poynting energy flux overcomes the kinetic energy flux. This result may be applicable to understand the hot accretion flow in the Galactic Center Sgr A* and M87 galaxy.
