Abstract
Sun-like stars are the sites of various high-energy processes, many of which involve a release of coronal magnetic energy. Most of our knowledge on high-energy mechanisms in stellar atmospheres (other than the Sun's) is based on observations in the radio and soft x-ray regimes. They indicate a continuous presence of MeV particles, heating to high (> 10 MK) plasma temperatures, and a close interrelation between particle acceleration and heating, e.g., during chromospheric evaporation as evidenced in observations of the Neupert Effect. The present paper summarizes different aspects of high-energy processes in solar-type stellar coronae from recent, selected observing campaigns.
Export citation and abstract BibTeX RIS