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

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 Aϕ and three plasma beta values (β=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.

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Publication Details

Journal
Universe
Published
2025-12-08
DOI
https://doi.org/10.3390/universe11120404
Primary Topic
Astrophysical Phenomena and Observations
Type
article
Field-Weighted Citation Impact
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article

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

Universe
Astrophysical Phenomena and Observations
article

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

article en

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 Aϕ and three plasma beta values (β=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.

UniverseVol. 11(12)
University of Southern Mindanao (PH), National Tsing Hua University (TW), National Center for Theoretical Sciences (TW), National Center for Theoretical Sciences, Physics Division
Openalex Percentile: Top 38%
Astrophysical Phenomena and Observations
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