The theory of the modulation of galactic cosmic rays by the solar wind is reviewed. The basic transport equation is presented, interpreted and then applied to cosmic-ray transport in a model heliosphere immersed in a constant uniform bath of galactic cosmic rays. The results of numerical modeling are presented and the dominant physical effects analyzed. A variety of observational tests of the model which were reported over the last several years are summarized and shown, generally, to support a model in which particle drifts play an important role. Recent measurements which show that the latitudinal gradient of cosmic rays changed sign in the recent sunspot minimum (relative the last sunspot minimum) are shown to provide additional, strong, support for the model. A new picture of the interplanetary magnetic field is presented, which gives promise of improving considerably the agreement between the theory and observations in the few remaining problem areas.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    The physics of cosmic-ray modulation


    Contributors:

    Published in:

    Publication date :

    1989-01-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :


    The physics of cosmic-ray modulation

    Jokipii, J.R. | Elsevier | 1989


    Cosmic x ray physics

    Mccammon, Dan / Cox, D. P. / Kraushaar, W. L. et al. | NTRS | 1992


    Section 6. Cosmic Ray Modulation

    Online Contents | 1995


    Cosmic-ray physics with IceCube

    Gaisser, Thomas K. | Online Contents | 2013


    Cosmic-ray physics with IceCube

    Gaisser, Thomas K. | Elsevier | 2011