scholarly journals Extrapolation of Three-dimensional Magnetic Field Structure in Flare-productive Active Regions with Different Initial Conditions

2020 ◽  
Vol 895 (2) ◽  
pp. 105 ◽  
Author(s):  
Y. Kawabata ◽  
S. Inoue ◽  
T. Shimizu
Keyword(s):  
Magnetic Field ◽  
Initial Conditions ◽  
Three Dimensional ◽  
Active Regions ◽  
Field Structure ◽  
Magnetic Field Structure

scholarly journals Magnetic Field Structure of the CME Source Region

2001 ◽  
Vol 203 ◽  
pp. 393-395
Author(s):  
Y. Hanaoka
Keyword(s):  
Magnetic Field ◽  
Magnetic Energy ◽  
Source Region ◽  
Three Dimensional ◽  
Active Regions ◽  
Helical Structure ◽  
Field Structure ◽  
Dimensional Structure ◽  
Magnetic Field Structure ◽  
The Magnetic Field

The three-dimensional structure of the magnetic field in the source region of CMEs is the key to understand how the stored magnetic energy eventually causes an eruption. A CME accompanied by a filament eruption on 2000 February 26-27 is particularly a good event to study the three-dimensional magnetic field structure. This event was very well observed with the EIT and LASCO of SOHO and the SXT of Yohkoh, and shows the following clues of the magnetic field structure which caused the CME. (1) The filament had a helical structure before the eruption and it was kept throughout the eruption. (2) The coronal loop structure shows that this event was an eruption of a part of the quadrapolar magnetic field structure consisting of two active regions. In this proceeding, we present a brief overview of the event.

A Discussion on the physics of the solar atmosphere - Physics of the solar atmosphere

1976 ◽  
Vol 281 (1304) ◽  
pp. 415-426
Keyword(s):  
Magnetic Field ◽  
Transition Region ◽  
Solar Atmosphere ◽  
Solar Rotation ◽  
Active Regions ◽  
Rotation Velocity ◽  
Coronal Magnetic Field ◽  
Velocity Fields ◽  
Field Structure ◽  
Magnetic Field Structure

A summary is given on recent results on the physics of the quiet solar atmosphere, and active regions. This includes: solar rotation, velocity fields and waves, magnetic field concentration, the transition region, coronal magnetic field structure, and prominences.

scholarly journals Some Remarks on the Statics and Dynamics of Magnetic Field Structure Development in Active Regions

1971 ◽  
Vol 43 ◽  
pp. 201-211
Author(s):  
V. Bumba ◽  
J. Suda
Keyword(s):  
Magnetic Field ◽  
High Resolution ◽  
Active Regions ◽  
Field Structure ◽  
Structure Development ◽  
Magnetic Field Structure ◽  
Statics And Dynamics ◽  
Fine Structures

Some comments are given concerning the fine structures in the umbra and penumbra of sunspots and their changes on the basis of high resolution photographs.

scholarly journals The Detailed Magnetic Field Structure in the SW Quadrant of M31

1990 ◽  
Vol 140 ◽  
pp. 198-200
Author(s):  
R. Beck ◽  
E.M. Berkhuijsen
Keyword(s):  
Magnetic Field ◽  
Coming Out ◽  
Three Dimensional ◽  
Field Structure ◽  
Magnetic Field Structure ◽  
External Galaxy ◽  
Jeans Instability ◽  
The Magnetic Field

A three-dimensional, arc-like structure in the magnetic field was found coming out of the plane of M31. This structure may be the first Parker-Jeans instability observed in an external galaxy.

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