Cosmic radiation in the heliosphere at successive solar minima 4. Modulation of galactic cosmic rays during the three consecutive solar minimum periods of 1977/1978, 1987 and 1997

Journal of Geophysical Research: Space Physics

Volumn 105, Issue A6, 2000, Pages 12651-12658

  Reinecke, J P L ^a,b   McDonald, F B ^a   Moraal, H ^b  

^a Bldg 142   (United States)

^b NORTH WEST UNIVERSITY   (South Africa)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 39449103542     PISSN: None     EISSN: 21699402     Source Type: Journal    
DOI: 10.1029/1999ja000423     Document Type: Article

References (20)

1. Burger, R. A., and M. S. Potgieter, The calculation of neutral sheet drift in two-dimensional cosmic-ray modulation models, Astrophys. J., 339, 501, 1989.
2. Fujii, Z., and F. B. McDonald, Radial intensity gradients of galactic cosmic rays (1972-1995) in the heliosphere, J. Geophys. Res., 102, 24,201, 1997.
3. Fujii. Z., and F. B. McDonald, The radial intensity gradients of galactic and anomalous cosmic rays, Adv. Space Res., 23(3), 437, 1999.
4. Heber, B., W. Dröge, H. Kunow, R. Müller-Mellin, and G. Wibberenz, Spatial variation of > 106 MeV proton fluxes observed during the Ulysses rapid latitude scan: Ulysses COSPIN/KET results, Geophys. Res. Lett., 23(3), 1513, 1996.
5. Jokipii, J. R., and J. Kóta, The polar heliospheric magnetic field, Geophys. Res. Lett., 16, 1, 1989.
6. Lima, J., and K. Tsinganos, The heliolatitudinal gradient of the solar wind during solar minimum conditions modeled by exact hydrodynamic solutions, Geophys. Revs. Lett., 23, 117 , 1996.
7. McDonald, F.B., and Z. Fujii, Study of the radial intensity gradients of galactic cosmic rays, Space Sci. Rev., 83, 183, 1998.
8. McDonald, F. B., H. Moraal, J. P. L. Reinecke, N. Lal, and R.E. McGuire, The cosmic radiation in the heliosphere at successive solar minima, J. Geophys. Res., 97, 1557, 1992.
9. McDonald, F. B., N. Lal, and R. E. McGuire, Cosmic ray recovery and solar minimum phase of solar cycle 22: An interim report, J. Geophys. Res., 103, 373, 1998.
10. Reinecke, J. P. L., H. Moraal, and F. B. McDonald, The cosmic radiation in the heliosphere at successive solar minima: Steady state no-drift solutions of the transport equation, J. Geophys. Res., 98, 9417, 1993.
11. Reinecke, J. P. L., H. Moraal, and F. B. McDonald, The cosmic radiation in the heliosphere at successive solar minima, 3, Steady state drift solutions of the transport equation, J. Geophys. Res., 101, 21,581, 1996.
12. Reinecke, J. P. L., C. D. Steenberg, H. Moraal, and F. B. McDonald, An alternative approach to the modeling of galactic cosmic ray intensities in the heliosphere, Adv. Space Res., 19(6), 901, 1997.
13. Smith, C. W., and J. W. Bieber, Solar cycle variation of the interplanetary magnetic field spiral, Astrophys. J., 370, 435, 1991.
14. Steenberg, C. D., Modeling of anomalous and galactic cosmic ray modulation in the outer heliosphere, Ph.D. thesis, Potchefstroom Univ., Potchefstroom, South Africa, 1998.
15. Steenkamp, R., Shock acceleration as source of the anomalous component of cosmic rays in the heliosphere, Ph.D. thesis, Potchefstroom Univ., Potchefstroom, South Africa, 1995.
16. 4He ratio at high energies, Astrophys. J., 312, 178, 187a.
17. Webber, W. R., R. L. Golden, and S. A. Stephens, Cosmic ray protons and helium spectra from 5-20 GV measured with a magnetic spectrometer, Conf. Pap. Int. Cosmic Ray Conf. 20, 1, 325, 1987b.
18. 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 to 1996, J. Ceophys. Res., 102, 9773, 1997.
19. Zank, G. P., W. H. Matthaeus, J. W. Bieber, and H. Moraal, The cosmic ray diffusion tensor in the heliosphere, Conf. Pap. Int. Cosmic Ray Conf. 25th, 2, 9, 1997.
20. Zank, G. P., W. H. Matthaeus, J. W. Bieber, and H. Moraal, The radial and latitudinal dependence of the cosmic ray diffusion tensor in the heliosphere, J. Geophys. Res., 103, 2085, 1998.