Science JournalFeeds

Abstract  Non-degenerate stars of essentially all spectral classes are soft X-ray sources. Their X-ray spectra have been important in
constraining physical processes that heat plasma in stellar environments to temperatures exceeding one [...]

Abstract  Starspots are created by local magnetic fields on the surfaces of stars, just as sunspots. Their fields are strong enough
to suppress the overturning convective motion and thus block or redirect the flow of energy from the stellar [...]