Back Partículas energéticas solares Spanish ذرات پر انرژی خورشیدی Persian Particelle energetiche solari Italian 太陽エネルギー粒子線 Japanese Сонячні енергетичні частинки Ukrainian Các hạt năng lượng Mặt Trời Vietnamese 太陽高能粒子 Chinese

Solar energetic particles

This visualization of particle acceleration across a shock is a simplified representation of shock drift acceleration showing the motion of electrons (yellow) and protons (blue).
Animation of NASA's STEREO coronagraph during a coronal mass ejection followed by solar energetic particles

Solar energetic particles (SEP), formerly known as solar cosmic rays, are high-energy, charged particles originating in the solar atmosphere and solar wind. They consist of protons, electrons and heavy ions with energies ranging from a few tens of keV to many GeV. The exact processes involved in transferring energy to SEPs is a subject of ongoing study.

SEPs are relevant to the field of space weather, as they are responsible for SEP events and ground level enhancements.

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