Nature's own particle accelerator

Details Nature's own particle accelerator Nature's own particle accelerator

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981stia...8144645w&link_type=abstract

(Mosaic, Nov.-Dec. 1980.) Sky and Telescope, vol. 62, Sept. 1981, p. 208-215.

Other

Cosmic Rays, Energetic Particles, Particle Acceleration, Cosmic Ray Showers, Galactic Radiation, Interstellar Matter, Milky Way Galaxy, Radiation Sources, Scintillation Counters, Shock Waves, Virgo Galactic Cluster

Scientific paper

The characteristics of cosmic rays are considered along with the possible causes for the cosmic ray energy. Currently, astrophysicists tend to favor an indirect process, in which the particles are accelerated by shock waves in the tenuous gas of the interstellar medium. Such shock waves could arise from several causes, including supernovas themselves or even strong flares given off by otherwise normal stars. Beyond 100 quadrillions electron volt the cosmic rays may well come from outside the Galaxy entirely. And in that event, there is as yet no convincing case to be made for a candidate source. Attention is given to the use of huge arrays for studying cosmic rays with very high energies, the Fly's Eye optical scintillation counter which uses the atmosphere at its detector, air showers, the employment of a second smaller Fly's Eye, questions of particle physics, and the 'Centauro' events.

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