Abstract
A review of cosmic-ray transport coefficients, based on historic and recent observations and theoretical insights, is presented. Particular emphasis is on the transport of cosmic rays across the magnetic field, which is of foremost importance, and is presently poorly understood and widely debated.
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Bieber, J. W., and Matthaeus, W. H,: 1997, 'Perpendicular diffusion and drift at intermediate cosmicray energies', Astrophys. J. 485, 655.
Bieber, J. W., Matthaeus, W. H, Smith C. W., Wanner W., Kallenrode M.-B., and Wibberenz G.: 1994, 'Proton and electron mean free paths: The Palmer consensus revisited', Astrophys. J. 420, 294.
Bieber, J. W., Wanner W., and Matthaeus, W. H.: 1996, 'Dominant two-dimensional solar wind turbulence with implications for cosmic ray transport', J. Geophys. Res. 101, 2511.
Cummings A. C., and Stone, E. C.: 1996, 'Composition of anomalous cosmic rays and implications for the heliosphere', Space Sci. Rev. 78, 117.
Dwyer, J. R., Mason, G. M., Mazur, J. E., Jokipii, J. R., von Rosenvinge, T. T., and Lepping, R. P.: 1997, 'Perpendicular transport of low energy CIR associated nuclei', Astrophys. J., in press.
Fisk, L. A.: 1996, 'Motion of the foot points of heliospheric magnetic field lines at the Sun: Implications for recurrent energetic particle events at high heliographic latitudes', J. Geophys. Res. 101, 15,547.
Forman, M. A.: 1977, 'The velocity correlation function in cosmic-ray theory', Astrophys. Sp. Sci. 49, 83.
Forman, M. A., Jokipii, J. R., and Owens, A. J.: 1974, 'Cosmic-ray streaming perpendicular to the mean magnetic field', Astrophys. J. 192, 535.
Giacalone, J., and Jokipii, J. R.: 1994, 'Charged-particle motion in multidimensional magnetic-field turbulence', Astrophys. Lett. 430, L137.
Gloeckler, G., Schwadron, N. A., Fisk, L. A., and Geiss, J.: 1995, 'Weak pitch angle scattering of few MV rigidity ions from measurements of anisotropies in the distribution function of interstellar H+', Geophys. Res. Lett. 22, 2665.
Hassleman, K., and Wibberenz, G.: 1968, 'Scattering of charged particles by random electromagnetic fields', Z. Geophys. 34, 353.
Intriligator, D. S., and Siscoe, G.: 199?, 'Cross-field diffusion in corotating interaction regions', J. Geophys. Res. 100, 21,605.
Jokipii, J. R.: 1966, 'Cosmic-ray propagation, 1, charged particles in a random magnetic field', Astrophys. J. 146, 480.
Jokipii, J. R.: 1972, 'Fokker-Planck equations for charged-particle transport in random fields', Astrophys. J. 172, 319.
Jokipii, J. R.: 1973, 'The rate of separation of magnetic lines of force in a random magnetic field', Astrophys. J. 183, 1029.
Jokipii, J. R.: 1986, 'Particle acceleration at a termination shock 1. Application to the solar wind and anomalous component', J. Geophys. Res. 91, 2929.
Jokipii, J. R.: 1993, 'Particle drifts for a finite scattering rate', Int. Conf. Cosmic Rays 23rd, 3, 497.
Jokipii, J. R., and Parker, E. N.: 1969, 'Stochastic aspects of magnetic lines of force with application to cosmic-ray propagation', Astrophys. J. 155, 777.
Jokipii, J. R., Kóta, J., and Giacalone J.: 1993, 'Perpendicular transport in 1-and 2-dimensional shock simulations', Geophys. Res. Lett. 20, 1759.
Kennel, C. F., Coroniti, F. V., Scarf F. L., Livesey W. A., Russell C. T., Smith E. J., Wenzel K. P., M. Scholer M.: 1986, 'A test of Lee's quasi-linear theory of ion acceleration by interplanetary traveling shocks', J. Geophys. Res. 91, 11,917.
Klimas, A. J., and Sandri, G.,: 1973,'A rigorous cosmic-ray transport equation with no restrictions on particle energy', Astrophys. J. 180, 937.
Kóta, J., J. R. Jokipii: 1997, 'Modeling of 3-D corotating cosmic-ray structures in the heliosphere', Sp. Sci. Rev., in press.
Lee, M. A.: 1983, 'Coupled hydromagnetic wave excitation and ion acceleration at interplanetary traveling shocks', J. Geophys. Res 88, 6109.
Ma Sung, L. S., and Earl, J. A.: 1978, 'Interplanetary propagation of flare-associated energetic particles, Astrophys. J. 222, 1080.
Meyer, P., Parker, E. N., and Simpson, J. A.: 1956, 'Solar cosmic rays of of February, 1956, and their propagation through interplanetary space', Phys. Rev. 104, 768.
Palmer, I. D.: 1982, 'Transport coefficients of low-energy cosmic rays in interplanetary space', Rev. Geophys. 20, 335.
Parker, E. N.: 1958, 'Origin and dynamics of cosmic rays', Phys. Rev. 109, 1328.
Parker, E. N.: 1965, 'The passage of energetic charged particles through interplanetary space', Planet. Space Sci. 13, 9.
Potgieter, M. S., and le Roux, J. A.: 1992, 'The simulated features of heliospheric cosmic-ray modulation with a time-dependent drift model I, General effects of the changing neutral sheet over the period 1985-1990', Astrophys. J. 386, 336.
Potgieter, M. S., le Roux, J. A., and Burger, R. A.: 1992, 'Interplanetary cosmic ray radial gradients with steady-state modulation models', J. Geophys. Res 94, 2323.
Roelof, E. C.: 1968, 'Transport of cosmic rays in the interplanetary medium', Can. J. Phys. 46, 5990.
Simnett, G.M., Sayle, K.A., Tappin, S.J., and Roelof, E.C.: 1995, 'Co-rotating particle enhancements out of the ecliptic plane', Space Sci. Rev. 72, 307.
Taylor, G. I.: 1922, 'Diffusion by continuous movements', Proc. London Math. Soc., Ser. 2, 20, 196.
Webber, W. R., Potgieter, M.S., and Burger, R. A.: 1989, 'A comparison of predictions of a wavy neutral sheet drift model with cosmic-ray data over a whole modulation cycle: 1976-1987', Astrophys. J. 349, 634.
Wibberenz, G.: 1979, 'Coronal and interplanetary propagation', Rapp. Rep. Int. Conf. Cosmic Rays, 16th, 234.
Zurbuchen, T. H., Schwadron, N. A., and Fisk, L. A.: 1997, 'Direct observational evidence for a heliospheric magnetic field with large excursions in latitude', J. Geophys. Res. 102, 24,175.
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Giacalone, J. Cosmic-Ray Transport Coefficients. Space Science Reviews 83, 351–363 (1998). https://doi.org/10.1023/A:1005087326666
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DOI: https://doi.org/10.1023/A:1005087326666