The Effect of Large Scale Magnetic Field on Outflow in ADAFs: an Odd Symmetry Configuration

Abstract

We construct self-similar inflow-outflow solutions for a hot viscous-resistive accretion flow with large scale magnetic fields that have odd symmetry with respect to the equatorial plane in $B_{\theta }$, and even symmetry in $B_r$ and $B_{\varphi }$. Following previous authors, we also assume that the polar velocity $v_{\theta }$ is nonzero. We focus on four parameters: ${\beta }_{r0}$, ${\beta }_{\varphi 0}$ (the plasma beta parameters for associated with magnetic field components at the equatorial plane), the magnetic resistivity ${\eta }_0$, and the density index $n=-d\ln \rho /d\ln r$. The resulting flow solutions are divided into two parts consisting of an inflow region with a negative radial velocity ($v_r<0$) and an outflow region with $v_r>0$. Our results show that stronger outflows emerge for smaller ${\beta }_{r0}$ ($\le 10^{-2}$ for $n>1$) and larger values of ${\beta }_{\varphi 0}$, ${\eta }_0$ and $n$.

10 pages, 9 figures, Accepted for publication MNRAS

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• The influence of large scale magnetic field in the structure of supercritical accretion flow with outflow
• Two-dimensional Inflow-Wind Solution of Hot Accretion Flow. I. Hydrodynamics
• The influence of outflow in supercritical accretion flows
• Compact binary merger and kilonova: outflows from remnant disc
• Self-similar solutions for finite size advection-dominated accretion flows
• A 2.5-dimensional viscous, resistive, advective magnetized accretion-outflow coupling in black hole systems: A higher order polynomial approximation. I
• Anchoring polar magnetic field in a stationary thick accretion disk
• Fourier analysis of advection-dominated accretion flows