The heliospheric modulation of galactic cosmic rays: The role of perpendicular diffusion enhanced in the polar regions of the heliosphere

Advances in Space Research

Volumn 23, Issue 3, 1999, Pages 449-452

  Potgieter, M S ^a  

^a NORTH WEST UNIVERSITY   (South Africa)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0040143487     PISSN: 02731177     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0273-1177(99)00103-9     Document Type: Article

References (13)

1. Bieber, J. W., W. H. Matthaeus, C. W. Smith, W. Wanner, M-B. Kallenrode, et al., Proton and electron mean free paths: The Palmer consensus revisited, Astrophys. J., 420, 294 (1994).
2. Burger, R. A., and Hattingh, M., Steady-state drift-dominated modulation models for galactic cosmic rays, Astrophys. Space Sci., 230, 375 (1995).
3. Fisk, L. A., Solar modulation of galactic cosmic rays. 4. Latitude dependent modulation, J. Geophys. Res., 81, 4646 (1976).
4. Haasbroek, L. J., M. S. Potgieter and G. Wibberenz, Long-term cosmic ray modulation along the Ulysses trajectory: A numerical simulation, Proc. 24th ICRC (Roma), 4, 768, (1995).
5. Heber, B., W. Dröge, P. Ferrando, L. J. Haasbroek, H. Kunow, et al. Spatial variation of > 40 MeV/n nuclei fluxes observed during the Ulysses rapid latitude scan, Astron. Astrophys, 316, 538 (1996).
6. Jokipii, J. R., and J. Kóta, The polar heliospheric magnetic field, Geophys. Res. Let., 16, 1 (1989).
7. Kóta, J., and J. R. Jokipii, Effects of drift on the transport of cosmic rays. VI. A three-dimensional model including diffusion, Astrophys. J., 265, 573 (1983).
8. Kóta, J., and J. R. Jokipii, 3D distribution of cosmic rays in the outer heliosphere, Proc. 24th ICRC, 4, 680 (1995).
9. le Roux, J. A., and M. S. Potgieter, The simulation of complete 11 and 22 year modulation cycles for cosmic rays in the heliosphere using a drift model with global merged interaction regions, Ap.J., 442, 847 (1995).
10. Potgieter, M. S., Heliospheric modulation of galactic electrons: Consequences of new calculations for the mean free path of electrons between 1 MeV and 1 GeV, J. Geophys. Res., 101, 24411 (1996).
11. Potgieter, M. S., Implications of enhanced perpendicular diffusion in the heliospheric modulation of cosmic rays, Proc. 25th ICRC (Durban), 2, 1 (1997).
12. Potgieter, M. S., L. J. Haasbroek, B. Heber, and P. Ferrando, The modelling of the latitude dependence of cosmic ray protons and electrons in the inner heliosphere, Adv. Space Res. 19(6), 917, (1997).
13. Webber, W. R., and J. A. Lockwood, Intensities of anomalous and galactic cosmic rays in the outer heliosphere near the heliospheric equator in 1987 and during the period from 1994 and 1996, J. Geophys Res 102, 9773 (1997).