Exploring the Role of Vector Potential and Plasma-$\beta$ in Jet Formation from Magnetized Accretion Flows

TL;DR

This study uses general relativistic magnetohydrodynamic simulations to examine how initial magnetic field configurations and plasma beta values influence jet formation and accretion dynamics in magnetized flows around black holes.

Contribution

It systematically explores the impact of initial vector potential and plasma beta on jet launching and accretion, revealing conditions that favor different accretion states.

Findings

Jet launching efficiency varies with magnetic field topology.

Higher plasma beta reduces magnetic flux accumulation.

Initial conditions significantly influence accretion and jet formation.

Abstract

In this work, we investigate how the choice of initial vector potential and plasma parameters influences the development of accretion columns and jet formation in magnetized accretion flows. Using general relativistic magnetohydrodynamic simulations, we explore two different configurations of the vector potential $A_{\phi}$ and three plasma beta values $\beta$ = 50, 100, 500. We analyze how variations in the poloidal magnetic field strength and plasma magnetization affect magnetic flux accumulation near the black hole and the subsequent growth of the accretion column. Our results highlight the dependence of jet launching efficiency and accretion dynamics on the initial magnetic field topology and plasma beta, offering insight into the conditions that favor magnetically arrested disk or standard and normal evolution states.