Eruption of magnetic flux ropes during flux emergence

Abstract

Aims: We investigate the formation of flux ropes in a flux emergence region and their rise into the outer atmosphere of the Sun. Methods: We perform 3D numerical experiments solving the time-dependent and resistive MHD equations. Results: A sub-photospheric twisted flux tube rises from the solar interior and expands into the corona. A flux rope is formed within the expanding field, due to shearing and reconnection of field lines at low atmospheric heights. If the tube emerges into a non-magnetized atmosphere, the flux rope rises, but remains confined inside the expanding magnetized volume. On the contrary, if the expanding tube is allowed to reconnect with a preexisting coronal field, the flux rope experiences a full eruption with a rise profile which is in qualitative agreement with erupting filaments and Coronal Mass Ejections.

References in corpus (3)

• Torus instability
• Observations and modeling of the early acceleration phase of erupting filaments involved in coronal mass ejections
• The effect of the relative orientation between the coronal field and new emerging flux: I Global Properties

Cited by in corpus (39)

• Flare-productive active regions
• A Breakout Model for Solar Coronal Jets with Filaments
• Decoding the Pre-Eruptive Magnetic Field Configurations of Coronal Mass Ejections
• Formation of a Double-decker Magnetic Flux Rope in the Sigmoidal Solar Active Region 11520
• Flux Rope Formation Preceding Coronal Mass Ejection Onset
• Magnetic Flux Ropes in the Solar Corona: Structure and Evolution toward Eruption
• Recurrent solar jets in active regions
• Simulations of Emerging Magnetic Flux. II: The formation of Unstable Coronal Flux Ropes and the Initiation of CMEs
• Imaging and Spectroscopic Diagnostics on the Formation of Two Magnetic Flux Ropes Revealed by SDO/AIA and IRIS
• Flux emergence and coronal eruption
• Numerical Modeling of Interplanetary Coronal Mass Ejections and Comparison with Heliospheric Images
• Helical Blowout Jets in the Sun: Untwisting and Propagation of Waves
• On the emergence of toroidal flux tubes: general dynamics and comparisons with the cylinder model
• Formation of Compound Flux Rope by The Merging of Two Filament Channels, Associated Dynamics and its Stability
• A Comprehensive Radiative Magnetohydrodynamics Simulation of Active Region Scale Flux Emergence from the Convection Zone to the Corona
• Recurrent explosive eruptions and the sigmoid-to-arcade transformation in the sun driven by dynamical magnetic flux emergence
• Recurrent CME-like eruptions in emerging flux regions. I. On the mechanism of eruptions
• Transition from circular-ribbon to parallel-ribbon flares associated with a bifurcated magnetic flux rope
• When do solar erupting hot magnetic flux ropes form?
• Filament Eruption and Its Reformation Caused by Emerging Magnetic Flux
• The emergence of magnetic flux and its role on the onset of solar dynamic events
• Large-amplitude prominence oscillations following the impact by a coronal jet
• The Role of Reconnection in the Onset of Solar Eruptions
• Reconfiguration and eruption of a solar filament by magnetic reconnection with an emerging magnetic field
• Linkage of Geoeffective Stealth CMEs Associated with the Eruption of Coronal Plasma channel and Jet-Like Structure
• Magnetic Helicity and Free Magnetic Energy as Tools to Probe Eruptions in two Differently Evolving Solar Active Regions
• Analysis of the Helical Kink Stability of Differently Twisted Magnetic Flux Ropes
• Interpreting magnetic helicity flux in solar flux emergence
• Downward catastrophe of solar magnetic flux ropes
• From incoherent field to coherent reconnection: understanding convection-driven coronal heating in the quiet Sun
• Influence of photospheric magnetic conditions on the catastrophic behaviors of flux ropes in active regions
• Recurrent CME-like Eruptions in Emerging Flux Regions. II. Scaling of Energy and Collision of Successive Eruptions
• Effects of partial ionization on magnetic flux emergence in the Sun
• Sunspot shearing and sudden retraction motion associated with the 2013 August 17 M3.3 Flare
• Non-Neutralized Electric Current of Active Regions Explained as a Projection Effect
• Formation and Eruption of a Mini-sigmoid Originating in Coronal Hole
• Solar Interior
• Investigation of a confined C-class flare in an arch filament system close to a regular sunspot
• A comparative study of solar flux emergence and eruptivity in simulations of horizontal versus toroidal magnetic fields