Structure of ADAFs in a general large-Scale B-field: The role of wind and thermal conduction

Abstract

We have explored the structure of hot flow bathed in a general large-scale magnetic field. The importance of outflow and thermal conduction on the self-similar structure of a hot accretion flows has been investigated. We consider the additional magnetic parameters ${\beta }_{r,\phi ,z}[=c_{r,\phi ,z}^2/(2c_s^2)]$, where $c_{r,\phi ,z}^2$ are the Alfv$\acute{e}$n sound speeds in three direction of cylindrical coordinate. In comparison to the accretion disk without winds, our results show that the radial and rotational velocities of the disk become faster however it become cooler because of the angular momentum and energy flux which are taking away by the winds. but thermal conduction opposes the effect of winds not only decrease the rotational velocity but also increase the radial velocity as well as the sound speed of the disk. In addition we study the effect of global magnetic field on the structure of the disk. Our numerical results show that all components of magnetic field can be important and they have a considerable effect on velocities and vertical structure of the disk.

accepted for publication in Research in Astronomy and Astrophysics

References in corpus (5)

• Saturation of the Magnetothermal Instability in Three Dimensions
• Hot Accretion With Conduction: Spontaneous Thermal Outflows
• Self-Similar Solution of Hot Accretion Flows with Ordered Magnetic Field and Outflow
• Hydrodynamical wind on a magnetized ADAF with thermal conduction
• Hot accretion with outflow and thermal conduction

Cited by in corpus (6)

• Structure of Advection-Dominated Accretion Disks with Outflows: Role of Toroidal Magnetic Field
• The self-similar structure of advection-dominated discs with outflow and radial viscosity
• The effects of toroidal magnetic field on the vertical structure of hot accretion flows
• The influence of outflow in supercritical accretion flows
• Self-similar structure of resistive ADAFs with outflow and large-scale magnetic field
• Resistive Hot Accretion Flows with Anisotropic Pressure