Self-similar Solution of Hot Accretion Flow with Thermal Conduction and Anisotropic Pressure

Abstract

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.

13 pages, 6 figures, accepted for publication in ApJ

References in corpus (7)

• Numerical Simulation of Hot Accretion Flows (III): Revisiting wind properties using trajectory approach
• Ultra-fast outflows in radio-loud active galactic nuclei
• Line-driven disk wind model for ultra-fast outflows in active galactic nuclei -- Scaling with luminosity
• Hot Accretion With Conduction: Spontaneous Thermal Outflows
• Self-Similar Solution of Hot Accretion Flows with Ordered Magnetic Field and Outflow
• Transition of BH feeding from the quiescent regime into star-forming cold disk regime
• On the wind production from hot accretion flows with different accretion rates