Source Requirements for the Fluctuation Origin of Cosmic Radiation

Details Source Requirements for the Fluctuation Origin of Cosmic Radiation Source Requirements for the Fluctuation Origin of Cosmic Radiation

Apr 1969

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1969phrv..180.1232w&link_type=abstract

Physical Review, vol. 180, Issue 5, pp. 1232-1239

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Scientific paper

We have investigated what conditions are placed upon a source of cosmic-ray particles within a model of the origin of cosmic rays in which fluctuations in the momentum-changing process are important. This is done by considering the relationship between <ΔP> and <ΔP2>, where ΔP is the momentum change in a collision. With the assumption that the energies due to turbulent motion, cosmic rays, and the magnetic field are linearly related, we find an expression for the number density of cosmic-ray particles ejected from a changing volume in terms of their average kinetic energy. We consider this in terms of the fluctuation model to obtain other source requirements. It is found that over a large range of astrophysical phenomena the dominance of fluctuation can be important to the origin of cosmic radiation.

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