Energetic particles in space

Details Energetic particles in space Energetic particles in space

Sep 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980soph...67..393l&link_type=abstract

Solar Physics, vol. 67, Sept. 1980, p. 393-399.

Astronomy and Astrophysics

Astronomy

7

Cosmic Rays, Energetic Particles, Energy Spectra, Interplanetary Medium, Interplanetary Space, Solar Wind, Electron Energy, Ion Temperature, Proton Energy, Shock Wave Propagation, Solar Activity Effects, Solar Flares, Spaceborne Astronomy

Scientific paper

A review is presented of observations of suprathermal particles in the interplanetary medium along with new data on low energy particles from experiments aboard the ISEE spacecraft. Energy spectra of protons in the near earth atmosphere are plotted in the rest frame of the solar wind noting that at energies above 10 to the 9th eV, the galactic cosmic ray electron component has an unattenuated access into the heliosphere. Solar transient events such as flares accelerate and release energetic particles into the interplanetary medium; flare particle fluxes generate shock waves propagating past 1 AU following the event. It is concluded that the energy spectra for shock wave accelerations show a characteristic shape in accordance with the power law with a rapid steepening at high energies.

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