ocr: CELIAS The CELIAS (Charge, Element and sotope Analysis System) instrument is designed to study the composition of the solar wind and energetic ions of solar, interplanetary, and interstellar ongin: The steady heating process in the corona Solar wind acceleration processes Dynamic heating phenomena driven by magnetic fields or waves, e.g. - heating in coronal mass ejections, filament eruptions, flares Solar energetic particle acceleration processes Processes leading to variations in abundances (elemental, ionic charge, isotopic) The relation between composition and events/regions in the solar a ...