Solar Physics

, Volume 66, Issue 1, pp 159–165

Solar flares and the cosmic ray intensity

  • C. J. Hatton

DOI: 10.1007/BF00150526

Cite this article as:
Hatton, C.J. Sol Phys (1980) 66: 159. doi:10.1007/BF00150526


The relationship between the cosmic ray intensity and solar activity during solar cycle 20 is discussed. A model is developed whereby it is possible to simulate the observed cosmic ray intensity from the observed number of solar flares of importance ⩾1. This model leads to a radius for the modulation region of 60–70 AU. It is suggested that high speed solar streams also made a small contribution to the modulation of cosmic rays during solar cycle 20.

Copyright information

© D. Reidel Publishing Co 1980

Authors and Affiliations

  • C. J. Hatton
    • 1
  1. 1.Department of PhysicsUniversity of LeedsLeedsU.K.