Filament shape versus coronal potential magnetic field structure

Coronal Magnetic Field Topology over Filament Channels: Implication for Coronal Mass Ejection Initiations

The magnetic field topology at the coronal mass ejection (CME) source regions has been one of the major focuses of CME initiationmodels.While the ‘‘breakout’’ model requires a quadrupolar magnetic topology in the solar corona to enable an eruption, other models have shown that a bipolar magnetic topology can be the source region of a CME. In this paper, we use observational data and a potential...

Coronal Magnetic Field Measurements

A long-standing solar problem has been to measure the coronal magnetic field. We believe it determines the coronal structure and dynamics from the upper chromosphere out into the heliospheric environment. It is only recently that Zeeman splitting observations of infrared coronal emission lines have been successfully used to deduce the coronal magnetic flux density. Here we extend this technique...

Reconstruction of Solar Coronal Linear Force-Free Magnetic Field

Determination of the coronal magnetic field by coronal loop oscillations

We develop a new method for the determination of the absolute value of the magnetic field strength in coronal closed magnetic structures, based on the analysis of flare-generated oscillations of coronal loops. Interpretation of the oscillations observed in terms of global standing kink waves allows to connect the period of the oscillations and the loops length with the magnetic field strength i...

CORONAL MAGNETIC FIELD CONTEXT OF SIMPLE CMEs INFERRED FROM GLOBAL POTENTIAL FIELD MODELS

Most work on coronal mass ejection (CME) interpretation focuses on the involved active region rather than on the large-scale coronal context. In this paper a global potential-field sourcesurface model of the coronal magnetic field is used to evaluate the sensitivity of the coronal field configuration to the location, orientation, and strength of a bipolar active region relative to a background ...