Proton and electron components in galactic cosmic rays

Details Proton and electron components in galactic cosmic rays Proton and electron components in galactic cosmic rays

Sep 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ijrsp...6..215d&link_type=abstract

(Space Sciences Symposium, Trivandrum, India, Jan. 18-21, 1977.) Indian Journal of Radio and Space Physics, vol. 6, Sept. 1977,

Physics

Space Physics

Cosmic Rays, Electrons, Protons, Interplanetary Space, Interstellar Radiation

Scientific paper

An analysis is made to understand the ratio of protons to electrons in cosmic rays observed in the near vicinity of earth. The deviation of this ratio from unity, even after correcting for interplanetary and interstellar effects, is examined in detail. The variation of this ratio with energy is also studied. Two types of sources are postulated, one giving rise to a power-law spectrum in rigidity (arising from a betatron type of acceleration mechanism) and the other a power-law spectrum in the Lorentz factor (arising from either Fermi acceleration or a shock-wave acceleration mechanism). It has also been suggested that these two types of source can actually arise in the same supernova, shock-wave acceleration being effective after the outburst and betratron acceleration being effective in the remnant.

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