Observations of systematic temporal evolution in elemental composition during gradual solar energetic particle events

Geophysical Research Letters

Volumn 26, Issue 14, 1999, Pages 2141-2144

  Tylka, Allan J ^a,c   Reames, Donald V ^b   Ng, Chee K ^a  

^a NAVAL RESEARCH LABORATORY   (United States)

^b NASA GODDARD SPACE FLIGHT CENTER   (United States)

^c UNIVERSITY OF MARYLAND   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EARTH SCIENCES; GEOPHYSICS; PLASMA OSCILLATIONS; PLASMA WAVES; PROTONS; SOLAR RADIATION;

ELEMENTAL COMPOSITIONS; ENERGETIC PROTONS; SOLAR CYCLE; SOLAR ENERGETIC PARTICLE EVENTS; SOLAR ENERGETIC PARTICLES; STRIKING PATTERNS; TEMPORAL EVOLUTION; THEORETICAL MODELING; ALFVEN WAVE FIELDS;

ELEMENTARY PARTICLES; COSMIC RAYS;

SOLAR ACTIVITY;

EID: 0032746667     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/1999GL900458     Document Type: Article

References (20)

1. Cane, H.V., D.V. Reames, and T.T. von Rosenvinge, Solar particle abundances at energies of greater than 1 MeV per nucleon and the role of interplanetary shocks, Astrophys. J. 373, 675-682, 1991.
2. Cliver, E.W., Solar flare gamma-ray emission and energetic particles in space, in High Energy Solar Physics, eds. R. Ramaty et al., AIP Conf. Proc. 374 (AIP Press), 45-60, 1996.
3. Gosling, J.T., The solar flare myth, J. Geophys. Res. 98, 18937-18949, 1993.
4. Kahler, S., Solar flares and coronal mass ejections, Anna. Rev. Astron. Astrophys. 30, 113-141, 1992.
5. Lee, M.A., Coupled hydrodynamic wave excitation and ion acceleration at interplanetary traveling shocks, J. Geophys. Res. 88, 6109-6119, 1983.
6. Lee, M.A., Particle acceleration and transport at CME-driven shocks, in Coronal Mass Ejections, eds. N. Crooker, J.A. Jocelyn, and J. Feynman, Geophys. Monograph 99 (AGU Press), 227-234, 1997.
7. Luhn, A. et al., Ionic charge states of N, Ne, Mg, Si, and S in solar energetic particle events, Adv. Space Res. 4, (2-3) 161-164, 1984.
8. Ng, C.K. and D.V. Reames, Focused interplanetary transport of ∼1 MeV protons through self-generated Alfvén waves, Astrophys. J. 424, 1032-1048, 1994.
9. Ng, C.K., D.V. Reames, and A.J. Tylka, Effect of proton-amplified waves on the evolution of composition in gradual solar energetic particle events, Geophys. Res. Lett., this issue, 1999.
10. Mason, G.M., G. Gloeckler, and D. Hovestadt, Temporal variation of nuclear abundances in solar energetic particle events, Astrophys. J. 280, 902-916, 1984.
11. Möbius, E. et al., Ionic charge states of solar energetic particles from solar flare events during the current rise of solar activity as observed with ACE SEPICA, Adv. Space Res., 1999 (in press).
12. Reames, D.V., Acceleration of energetic particles by shock waves from large solar flares, Astrophys. J. Lett. 358, L63-L67, 1990.
13. Reames, D. V., Coronal abundances determined from energetic particles, Adv. Space Res. 15, (7) 41-51, 1995.
14. Reames, D.V., Energetic particles and the structure of coronal mass ejections, in Coronal Mass Ejections, ibid., 217-226, 1997.
15. Reames, D.V., L.M. Barbier, and C.K. Ng, The spatial distribution of particles accelerated by coronal mass ejection-driven shocks, Astrophys. J. 466, 473-486, 1996.
16. Reames, D. V. et al., Energy spectra of ions accelerated in impulsive and gradual solar events, Astrophys. J. 483, 515-522, 1997.
17. Solar Geophysical Data (SGD) 645A, 30, 1998a;
18. 649A, 34, 1998b.
19. th Internat. Cosmic Ray Conf (Kyoto) 5, 68-73, 1979.
20. von Rosenvinge, T.T. et al., The Energetic Particles Acceleration, Composition and Transport (EPACT) experiment on the WIND spacecraft, Space Sci. Revs. 71, 155-206, 1995.