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 …

Solar flares are observed at all wavelengths from decameter radio waves to gamma-rays
beyond 1 GeV. This review focuses on recent observations in EUV, soft and hard X-rays …

We investigate how magnetic fields guide energetic particles through the corona into
interplanetary space and eventually to a spacecraft near the Earth. A set of seven simple …

The coronal mass ejection (CME) phenomenon occurs in closed magnetic field regions on
the Sun such as active regions, filament regions, transequatorial interconnection regions …

The fine structures (FS) of solar type IV radio bursts are of principal interest for flare plasma
diagnostics in the low corona. In this paper we give an observational (Part I) and theoretical …

The spatial association of narrow band metric radio spikes with type III bursts is analyzed.
The analysis addresses the question of a possible causal relation between the spike …

By simultaneously analyzing decimetric, metric, and hectometric radio observations, we
provide evidence that a class of hectometric type III–like radio events are associated with …

Between 1996 and 2002, the COSTEP particle instrument aboard the SoHO mission
observed 18 solar energetic particle events where the release times of protons up to 54 MeV …

Solar energetic particles (SEPs) are sporadically ejected from the Sun during flares and
coronal mass ejections. They are of major astrophysical interest, because the proximity of …

The double plasma resonance (DPR) effect is the phenomenon of a sharply increased
instability of plasma waves in a magnetized plasma when the upper hybrid frequency …