Probabilistic forecasting of solar flares from vector magnetogram data

Space Weather ◽  
2007 ◽  
Vol 5 (9) ◽  
pp. n/a-n/a ◽  
Author(s):  
G. Barnes ◽  
K. D. Leka ◽  
E. A. Schumer ◽  
D. J. Della-Rose
Keyword(s):  
Solar Flares ◽  
Probabilistic Forecasting ◽  
Magnetogram Data

scholarly journals Generation and Annihilation of Magnetic Helicity in Active Regions

2005 ◽  
Vol 13 ◽  
pp. 113-116
Author(s):  
K. Kusano
Keyword(s):  
Numerical Simulations ◽  
Solar Flares ◽  
Large Scale ◽  
Inversion Layer ◽  
Three Dimensional ◽  
Active Regions ◽  
Nonlinear Process ◽  
Magnetic Helicity ◽  
Numerical Techniques ◽  
Magnetogram Data

AbstractGeneration and annihilation processes of magnetic helicity in solar coronal active regions are investigated based on the observations and the simulations. We first examined the reliability of the numerical techniques, which enable to measure the magnetic helicity flux through the photosphere based on the magnetogram data. Secondly, in terms of the new technique, we found that magnetic helicities of the both signs are simultaneously injected into active regions. Motivated by this result, finally, we investigated the nonlinear process of the magnetic helicity annihilation, using the three-dimensional numerical simulations. The simulations clearly indicated that the helicity reversal can cause the eruption of large-scale plasmoid through the nonlinear process of the resistive instability growing on the helicity inversion layer. From these studies, we point out that the annihilation of magnetic helicity is a key process for the onset mechanism of solar flares.

Studies of the structure and dynamics of theDregion of the polar ionosphere during solar flares in April 2004

2006 ◽  
Vol 6 (2) ◽  
Author(s):  
V. D. Tereshchenko ◽  
E. B. Vasil'ev ◽  
O. F. Ogloblina ◽  
V. A. Tereshchenko ◽  
S. M. Chernyakov
Keyword(s):  
Solar Flares ◽  
Polar Ionosphere ◽  
Structure And Dynamics

The occurrence of single hard x-ray sources in solar flares

2003 ◽  
Vol 32 (12) ◽  
pp. 2483-2488
Author(s):  
C GOFF ◽  
S MATTHEWS ◽  
L HARRA
Keyword(s):  
Solar Flares ◽  
X Ray

Magnetic fields in solar flares

2007 ◽  
Vol 13 (1s) ◽  
pp. 99-100
Author(s):  
V.G. Lozitsky ◽  
Keyword(s):  
Magnetic Fields ◽  
Solar Flares
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