Abstract:
Recent results on various aspects of solar energetic particles are reviewed. A possible grain component of the polar particles is discussed in brief. The plasma component namely the solar wind and the solar energetic particle composition is evaluated. Composition studies of solar wind are reviewed. The solar energetic particle flares are separated into large and small flare composition. Elemental and isotopic composition are listed so as to compare with the other measurements. Present status of theoretical studies is reviewed. Long term variations are also mentioned.