Cosmic ray energy loss in the heliosphere: Direct evidence from electron-capture-decay secondary isotopes

Journal of Geophysical Research: Space Physics

Volumn 108, Issue A10, 2003, Pages

  Niebur, S M ^a,b   Scott, L M ^a   Wiedenbeck, M E ^c   Binns, W R ^a   Christian, E R ^b,d   Cummings, A C ^e   Davis, A ^e   George, J S ^e   Hink, P L ^a,f   Israel, M H ^a   Leske, R A ^e   Mewaldt, R A ^e   Stone, E C ^e   Von Rosenvinge, T T ^d   Yanasak, N E ^c,g  

^a WASHINGTON UNIVERSITY   (United States)

^b NASA HEADQUARTERS   (United States)

^c CALIFORNIA INSTITUTE OF TECHNOLOGY   (United States)

^d NASA GODDARD SPACE FLIGHT CENTER   (United States)

^e CALIFORNIA INSTITUTE OF TECHNOLOGY   (United States)

^f Burle Industries   (United States)

^g Department of Psychology University of Georgia ^*  (United States)

Author keywords

Adiabatic energy loss; Cosmic ray isotopes; Electron capture decay; Solar modulation

Indexed keywords

EID: 41549100458     PISSN: None     EISSN: 21699402     Source Type: Journal    
DOI: 10.1029/2002JE001868     Document Type: Article

References (27)

1. Connell, J. J., Cosmic ray composition as observed by Ulysses, Space Sci. Rev, 99, 41-50, 2001.
2. Connell, J. J., and J. A. Simpson, Ulysses HET measurements of electroncapture secondary isotopes: Testing the role of cosmic ray reacceleration, Proc. Int. Conf. Cosmic Rays 26th, 3, 33-36, 1999.
3. Davis, A. J., et al., Solar minimum spectra of galactic cosmic rays and their implications for models of the hear-Earth radiation environment, J. Geophys. Res., 106, 29,979-29,987, 2001a.
4. Davis, A. J., et al., The evolution of galactic cosmic ray element spectra from solar minimum to solar maximum: ACE measurements, Proc. Int. Conf. Cosmic Rays 27th, 10, 3971-3974, 2001b.
5. Fisk, L. A., Solar modulation of galactic cosmic rays, 2, J. Geophys. Res., 76, 221-226, 1971.
6. Gleeson, L. J., and W. I. Axford, Solar modulation of galactic cosmic rays, Astrophys. J., 154, 1011-1026, 1968.
7. Goldstein, M. L., L. A. Fisk, and R. Ramaty, Energy loss of cosmic rays in the interplanetary medium, Phys. Rev. Lett., 25, 832-835, 1970.
8. Heinbach, U., and M. Simon, Propagation of galactic cosmic rays under diffusive reacceleration, Astrophys. J., 441, 209-221, 1995.
9. Labrador, A. W., and R. A. Mewaldt, Effects of solar modulation on the low-energy cosmic-ray antiproton/proton ratio, Astrophys. J., 480, 371-376, 1997.
10. Letaw, J. R., R. Silberberg, and C .H. Tsao, Comparison of distributed reacceleration and leaky-box models of cosmic-ray abundances (3 ≤ Z ≤ 28), Astrophys. J., 414, 601-611, 1993.
11. Meneguzzi, M., J. Audouze, and H. Reeves, The production of the elements Li, Be, B by galactic cosmic rays in space and its relation with stellar observations, Astron. Astrophys., 15, 337-359, 1971.
12. Niebur, S. M., et al., Secondary electron-capture-decay isotopes and impli-cations for the propagation of galactic cosmic rays, in Acceleration and Transport of Energetic Particles Observed in the Heliosphere, edited by R. A. Mewaldt et al., AIP Conf. Proc., 528, 406-409, 2000.
13. 57Co, Proc. Int. Conf. Cosmic Rays 27th, 5, 1675-1678, 2001.
14. Raisbeck, G., C Perron, J. Toussaint, and F. Yiou, Electron capture isotopes in cosmic rays as astrophysical probes, Proc. Int. Conf. Cosmic Rays 13th, 1, 534-539, 1973.
15. Rygg, T. A., and J. A. Earl, Balloon measurements of cosmic ray protons and helium over half a solar cycle 1965-1969, J. Geophys. Res., 76, 7445-7469, 1967.
16. Silberberg, R., C. H. Tsao, J. R. Letaw, and M. M. Shapiro, Distributed acceleration of cosmic rays, Phys. Rev Lett., 51, 1217-1220, 1983.
17. Silberberg, R., C. H. Tsao, and M. M. Shapiro, A weak reacceleration model for cosmic rays that fits both heavy ions and electrons, in Towards the Millennium in Astrophysics, Problems and Prospects: International School of Cosmic Ray Astrophysics 10th Course, Erice 1996, edited by M. M. Shapiro, R. Silberberg, and J. P. Wefel, pp. 227-240, World Sci., River Edge, N.J., 1998a.
18. Silberberg, R., C. H. Tsao, and A. F. Barghouty, Updated partial cross sections of proton-nucleus reactions, Astrophys. J., 501, 911-919, 1998b.
19. Soutoul, A., R. Legrain, A. Lukasiak, F. B. McDonald, and W. R. Webber, Evidence from Voyager and ISEE-3 spacecraft: Data for the decay of secondary K-electroh capture isotopes during the propagation of cosmic rays in the galaxy, Astron. Astrophys., 336, L61-L64, 1998.
20. Stone, E. C., et al., The Cosmic-Ray Isotope Spectrometer for the Advanced Composition Explorer, Space ScL Rev., 86, 285-358, 1998a.
21. Stone, E. C., A. M. Frandsen, R. A. Mewaldt, E. R. Christian, D. Margolies, J. F. Ormes, and F. Snow, The Advanced Composition Explorer, Space Sci. Rev, 86, 1-22, 1998b.
22. Tsao, C. H., R. Silberberg, and A. F. Barghouty, Partial cross sections of nucleus-nucleus reactions, Astrophys. J., 501, 920-926, 1998.
23. von Rosenvinge, T. T., and C. Paizis, Amplitudes of solar modulation of low energy cosmic rays, Proc. Int. Conf Cosmic Rays 17th, 10, 69-72, 1981.
24. Webber, W. R., J. C Kish, and D. A. Schrier, Individual isotopic fragmentation cross-sections of relativistic nuclei in hydrogen, helium, and carbon targets, Phys. Rev. C, 41, 547-565, 1990.
25. 55Mn in a liquid hydrogen target, Phys. Rev. C, 58, 3539-3552, 1998.
26. -1 in hydrogen targets, Astrophys. J. Suppl, 144, 153-167, 2003.
27. 14C and implications for the galactic cosmic-ray age, Astrophys. J., 563, 768-792, 2001.