Using transient decreases of cosmic rays observed at voyagers 1 and 2 to estimate the location of the heliospheric termination shock

Journal of Geophysical Research: Space Physics

Volumn 106, Issue A1, 2001, Pages 253-260

  Webber, W R ^a   Lockwood, J A ^b,c   McDonald, F B ^c   Heikkila, B ^d  

^a NEW MEXICO STATE UNIVERSITY   (United States)

^b NASA GODDARD SPACE FLIGHT CENTER   (United States)

^c UNIVERSITY OF NEW HAMPSHIRE   (United States)

^d Bldg 142   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000004307     PISSN: 21699380     EISSN: 21699402     Source Type: Journal    
DOI: 10.1029/2000JA000285     Document Type: Article

References (21)

1. Burlaga, L. F., N. F. Ness, Merged interaction regions observed by Voyagers 1 and 2 during 1998, J. Geophys. Res., 105, 5141, 2000.
2. Decker, R. B., E. C. Roloef, S. M. Krimigis, Solar energetic particles from the April 1998 activity: Observations from 1 to 72 AU, Proc. Int. Conf. Cosmic Rays, 26th6, 328, 1999.
3. le Roux, J. A., H. Fichtner, Global merged interaction regions, the heliospheric termination shock, and time‐dependent cosmic ray modulation, J. Geophys. Res., 104, 4709, 1999.
4. McDonald, F. B., R. E. McGuire, N. Lal, The recovery phase of the cosmic ray modulation cycle. The role of GMIRs and of hysterisis effects, Proc. Int. Conf. Cosmic Rays, 23rd3, 521, 1993.
5. McDonald, F. B., A. Barnes, L. F. Burlaga, P. Gazis, J. Mihalov, R. S. Selesnick, Effects of the intense solar activity of March/June 1991 observed in the outer heliosphere, J. Geophys. Res., 99, 14, 705, 1994.
6. McDonald, F. B., N. Lal, A. E. McGuire, The onset of solar cycle 23 at 1 AU and 70 AU, Proc. Int. Conf. Cosmic Rays, 26th6, 536, 1999.
7. McDonald, F. B., B. Heikkila, N. Lal, E. C. Stone, The relative recovery of galactic and anomalous cosmic rays in the distant heliosphere: Evidence for modulation in the heliosheath, J. Geophys. Res., 105, 1, 2000a.
8. McDonald, F. B., L. F. Burlaga, R. E. McGuire, N. F. Ness, The onset of long‐term cosmic ray modulation in cycle 23 coupled with a transient increase of anomalous cosmic rays in the distant heliosphere, J. Geophys. Res., 105, 20,997, 2000b.
9. McKibben, R. B., et al., Propagation of the onset of modulation in cycle 23 from 1 to 72 AU, Proc. Int. Conf. Cosmic Rays, 26th6, 536, 1999.
10. O'Gallagher, J. J., A time dependent diffusion convection model for the long term modulation of cosmic rays, Astrophys. J., 197, 495, 1975.
11. Pesses, M. E., W. V. Jones, M. Forman, Voyager and Pioneer missions to the boundaries of the heliosphere, J. Geophys. Res., 98, 15,123, 1993.
12. Potgieter, M. S., Rapporteur paper on cosmic ray modulation, Proc. Int. Conf. Cosmic Rays, 23rd8, 213, 1993.
13. Stone, E. C., et al., Cosmic ray investigation for the Voyager missions: Energetic particle studies in the outer heliosphere and beyond, Space Sci. Rev., 21, 355, 1977.
14. Stone, E. C., et al., Voyager observations of anomalous and galactic cosmic rays during 1998, Proc. Int. Conf. Cosmic Rays, 26th7, 551, 1999.
15. Van Allen, J. A., Recovery of interplanetary cosmic ray intensity following the great Forbush decrease of mid‐1991, Geophys. Res. Lett., 20, 2797, 1993.
16. Van Allen, J. A., R. W. Fillius, Propagation of a large Forbush decrease in cosmic‐ray intensity past the Earth, Pioneer 11 at 34 AU, and Pioneer 10 at 53 AU, Geophys. Res. Lett., 19, 1423, 1992.
17. Van Allen, J. A., B. A. Randall, Interplanetary cosmic ray intensity: 1972-1984 and out to 32 AU, J. Geophys. Res., 90, 1399, 1985.
18. Webber, W. R., J. A. Lockwood, Giant transient decreases of cosmic rays in the outer heliosphere in September 1991, J. Geophys. Res., 98, 7821, 1993.
19. Webber, W. R., J. A. Lockwood, Determining the scale size of the heliosphere using global cosmic ray transient decreases, Proc. Int. Conf. Cosmic Rays, 26th6, 544, 1999.
20. Webber, W. R., J. A. Lockwood, J. R. Jokipii, Characteristics of large Forbush‐type decreases in the cosmic radiation, 2, Observations at different heliocentric radial distances, J. Geophys. Res., 91, 4103, 1986.
21. Whang, C., J. Y. Lu, L. F. Burlaga, The termination shock: 1979-1995, J. Geophys. Res., 104, 28,255, 1999.