Coronal mass ejections (CMEs) are the largest-scale eruptive phenomenon in the solar
system, expanding from active region-sized nonpotential magnetic structure to a much larger …

Large-scale, globally propagating wave-like disturbances have been observed in the solar
chromosphere and by inference in the corona since the 1960s. However, detailed analysis …

We analyze the physical mechanisms that form a three-dimensional coronal flux rope and
later cause its eruption. This is achieved by a zero-β magnetohydrodynamic (MHD) …

Context. The standard CSHKP model for eruptive flares is two-dimensional. Yet
observational interpretations of photospheric currents in pre-eruptive sigmoids, shear in post …

Nonlinear force-free field (NLFFF) models are thought to be viable tools for investigating the
structure, dynamics, and evolution of the coronae of solar active regions. In a series of …

Context. Solar flares strongly affect the Sun's atmosphere as well as the Earth's environment.
Quantifying the maximum possible energy of solar flares of the present-day Sun, if any, is …

Taking advantage of both the high temporal and spatial resolutions of the Atmospheric
Imaging Assembly on board the Solar Dynamics Observatory, we studied a limb coronal …

ABSTRACT The 2011 February 15 X2. 2 flare and associated Earth-directed halo coronal
mass ejection were observed in unprecedented detail with high resolution in spatial …

A major, albeit serendipitous, discovery of the SOlar and Heliospheric Observatory mission
was the observation by the Extreme Ultraviolet Telescope (EIT) of large-scale extreme …

The nature of coronal mass ejection (CME)-associated low corona propagating
disturbances," extreme ultraviolet (EUV) waves," has been controversial since their …