scholarly journals Dual-spacecraft observation of large-scale magnetic flux ropes in the Martian ionosphere

2011 ◽  
Vol 116 (A2) ◽  
pp. n/a-n/a ◽  
Author(s):  
D. D. Morgan ◽  
D. A. Gurnett ◽  
F. Akalin ◽  
D. A. Brain ◽  
J. S. Leisner ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Large Scale ◽  
Magnetic Flux Ropes ◽  
Flux Ropes ◽  
Martian Ionosphere

Models of the Large‐Scale Corona. I. Formation, Evolution, and Liftoff of Magnetic Flux Ropes

2006 ◽  
Vol 641 (1) ◽  
pp. 577-589 ◽  
Author(s):  
D. H. Mackay ◽  
A. A. van Ballegooijen
Keyword(s):  
Magnetic Flux ◽  
Large Scale ◽  
Magnetic Flux Ropes ◽  
Flux Ropes

scholarly journals Confined and Eruptive Catastrophes of Solar Magnetic Flux Ropes Caused by Mass Loading and Unloading

2021 ◽  
Vol 921 (2) ◽  
pp. 172
Author(s):  
Quanhao Zhang ◽  
Rui Liu ◽  
Yuming Wang ◽  
Xiaolei Li ◽  
Shaoyu Lyu
Keyword(s):  
Magnetic Flux ◽  
Total Mass ◽  
Large Scale ◽  
Magnetic Energy ◽  
Flux Rope ◽  
Mass Loading ◽  
Magnetic Flux Ropes ◽  
Flux Ropes ◽  
Loading And Unloading ◽  
Rope System

Abstract It is widely accepted that coronal magnetic flux ropes are the core structures of large-scale solar eruptive activities, which have a dramatic impact on the solar-terrestrial system. Previous studies have demonstrated that varying magnetic properties of a coronal flux rope system could result in a catastrophe of the rope, which may trigger solar eruptive activities. Since the total mass of a flux rope also plays an important role in stabilizing the rope, we use 2.5 dimensional magnetohydrodynamic numerical simulations in this article to investigate how a flux rope evolves as its total mass varies. It is found that an unloading process that decreases the total mass of the rope could result in an upward (eruptive) catastrophe in the flux rope system, during which the rope jumps upward and the magnetic energy is released. This indicates that mass unloading processes could initiate the eruption of the flux rope. Moreover, when the system is not too diffusive, there is also a downward (confined) catastrophe that could be caused by mass loading processes via which the total mass accumulates. The magnetic energy, however, is increased during the downward catastrophe, indicating that mass loading processes could cause confined activities that may contribute to the storage of energy before the onset of coronal eruptions.

scholarly journals Magnetic flux ropes: Fundamental structures for eruptive phenomena

2008 ◽  
Vol 4 (S257) ◽  
pp. 211-222 ◽  
Author(s):  
Tahar Amari ◽  
Jean-Jacques Aly
Keyword(s):  
Magnetic Flux ◽  
Large Scale ◽  
Convection Zone ◽  
Generic Model ◽  
Magnetic Flux Ropes ◽  
Structure And Dynamics ◽  
Mhd Instability ◽  
Flux Ropes ◽  
General Aspects ◽  
Coronal Field

AbstractWe consider some general aspects of twisted magnetic flux ropes (TFR), which are thought to play a fundamental role in the structure and dynamics of large scale eruptive events. We first discuss the possibility to show the presence of a TFR in a pre-eruptive configuration by using a model along with observational informations provided by a vector magnetograph. Then we present, in the framework of a generic model in which the coronal field is driven into an evolution by changes imposed at the photospheric level, several mechanisms which may lead to the formation and the disruption of a TFR, including the development of a MHD instability, and we discuss the issues of the energy and helicity contents of an erupting configuration. Finally we report some results of a recent and more ambitious approach to the physics of TFRs in which one tries to describe in a consistent way their rising through the convection zone, their emergence through the photosphere, and their subsequent evolution in the corona.

scholarly journals Understanding the Twist Distribution Inside Magnetic Flux Ropes by Anatomizing an Interplanetary Magnetic Cloud

2018 ◽  
Vol 123 (5) ◽  
pp. 3238-3261 ◽  
Author(s):  
Yuming Wang ◽  
Chenglong Shen ◽  
Rui Liu ◽  
Jiajia Liu ◽  
Jingnan Guo ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Magnetic Cloud ◽  
Magnetic Flux Ropes ◽  
Flux Ropes

scholarly journals Investigating 1st and 2nd order Fermi acceleration of energetic particles by small-scale magnetic flux ropes at 1AU

2020 ◽  
Vol 1620 ◽  
pp. 012008
Author(s):  
J A le Roux ◽  
G M Webb ◽  
O V Khabarova ◽  
K T Van Eck ◽  
L-L Zhao ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Energetic Particles ◽  
Small Scale ◽  
Fermi Acceleration ◽  
Magnetic Flux Ropes ◽  
Flux Ropes

scholarly journals Editorial: Magnetic Flux Ropes: From the Sun to the Earth and Beyond

2020 ◽  
Vol 7 ◽  
Author(s):  
Rui Liu ◽  
Jie Zhang ◽  
Yuming Wang ◽  
Hongqiang Song
Keyword(s):  
Magnetic Flux ◽  
The Sun ◽  
Magnetic Flux Ropes ◽  
The Earth ◽  
Flux Ropes

scholarly journals Possible Cool Prominence Materials Detected within Interplanetary Small Magnetic Flux Ropes

2019 ◽  
Vol 876 (1) ◽  
pp. 57 ◽  
Author(s):  
J. M. Wang ◽  
H. Q. Feng ◽  
H. B. Li ◽  
A. K. Zhao ◽  
Z. J. Tian ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Magnetic Flux Ropes ◽  
Flux Ropes
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